Answer:
2842
Explanation:
The first multiple of 7 =7
The last multiple of 7 before 200 = 196
This problem forms an arithmetic sequence where:
• The first term, a= 7
,• The last term, l = 196
To determine the sum, we find first the number of multiples of 7 between 7 and 196.
[tex]\begin{gathered} \text{Number of multiples=}\frac{196}{7} \\ =28 \end{gathered}[/tex]For a sequence with first and last terms, its sum is:
[tex]\begin{gathered} S_n=\frac{n}{2}(a+l) \\ =\frac{28}{2}(7+196) \\ =14\times203 \\ =2842 \end{gathered}[/tex]The sum of all multiples of 7 between 1 to 200 is 2842.
•
Designing Doorways for Rich and RizPON D5512ProblemRich has plenty of space abovenstead in this may Rizis quite a bitWat het oude budhat would give the same amount ofhadicom proportionatasRepen555sony net 50
Step 1
Calculate the difference in Rich height and the height of the doorway
6' 67/100'' - 5 5 3/4''
= 1' 19/100''
Then add the difference to Riz height
1' 19/100'' + 6' 8 1/2''
= 7' 9/10''
The height of the doorway that would give Riz enough space is 7' 9/10''
The correct answer is 2 and 5 only please explain why tho
We have that the graph has inflection points where the slope of the function is "0".
From this function we can see that the slope is "0" when x = 2 & x = 5; in all other places the slope is different from "0".
If Matthew rolls a number cube 90 times, how many times can he expect it 2 poilto land on an odd number?
Solution
The total face of a cube is 6
Possible odd 1,3,5
[tex]Probability\text{ =}\frac{Possible\text{ outcome}}{Total\text{ outcome}}[/tex]The cube is numbered one through six, and the odd numbers are therefore 1,3,5. So the probability of rolling an odd number in any given single roll is
[tex]\frac{3}{6}=\frac{1}{2}[/tex]Multiplying this probability by the number of times she rolls the cube gives
[tex]\frac{1}{2}\times90=45[/tex]The final answer
[tex]45[/tex]Which of the following graphs represents the equation 3x + 2y = 24?
Answer:
C
Step-by-step explanation:
if x=0
2y = 24
2/2 y = 24/2
y = 12
if y =0
3x = 24
3/3 x = 24/3
x = 8
An object is thrown with an initial velocity of 10 m/s off a cliff that is 660 m high. Use the formula s=4.9t^2 + v0t.a.How long does it take for the object to hit the ground?b. How far will it fall in 3 seconds?
hello
to solve this question, we proceed to apply the formula given
initial velocity v0 =
[tex]\begin{gathered} v_0=10\text{ m/s} \\ s=660m \end{gathered}[/tex]next we proceed to substitute the values into the equation
[tex]\begin{gathered} s=4.9t^2+v_0t \\ 600=4.9t^2+10t \\ 4.9t^2+10t-600=0 \end{gathered}[/tex]we'll proceed to solve this quadratic equation to find the time it took the ball to hit the ground
there are several methods to solve a quadratic equation and for the purpose of this session, i'll make use of quadratic formula
[tex]t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a}[/tex]in our equation, we have
[tex]\begin{gathered} a=4.9 \\ b=10 \\ c=-600 \end{gathered}[/tex]let's substitute the values into the equation
[tex]\begin{gathered} t=\frac{-b\pm\sqrt[]{b^2-4ac}}{2a} \\ t=\frac{-10\pm\sqrt[]{10^2-4\times(4.9\times-600)}}{2\times4.9} \\ t=\frac{-10\pm\sqrt[]{100+11760}}{9} \\ t=\frac{-10\pm\sqrt[]{11860}}{9} \\ t=\frac{-10\pm108.9}{9} \\ t=\frac{98.9}{9}\text{ or t}=\frac{-118.9}{9} \\ t=10.99\text{ ot t}=-13.21 \end{gathered}[/tex]but since time can't have a negative value, the answer is approximately 10.99.
the time taken for the object to hit the ground is approximately 10.99s
b.
how far will it fall in 3s
to find the distance the object travelled in 3s, let's substitute the value of time in the original equation
[tex]\begin{gathered} s=4.9t^2+v_0t \\ t=3 \\ v_0=10\text{ m/s} \\ s=4.9(3)^2+10\times3 \\ s=4.9\times9+30 \\ s=44.1+30 \\ s=74.1m \end{gathered}[/tex]in 3s, the ball travelled a distance of 74.1m
Lesson 6: Relate Division and Multiplication Cool-down: A Different Relay Race 1. Lin and Han ran a 5 mile relay race as a team. They each ran the same distance. Dras diagram to represent the situation.
Lin and Han ran a 5 miles relay race.
If they both ran same distance, that means each of them ran;
[tex]\frac{1}{2}(5\text{miles)}=2.5\text{miles}[/tex]So, Lin and Han ran 2.5miles each.
The diadramatic representation of this scenario is;
The image above shows a track race of 5 miles divided into two. LIN ran half of it (2.5 miles) and also Han ran the other half, also (2.5 miles)
6cmA bakery sells hollow chocolate spheres. The larger diameter of eachsphere is 6 cm. The thickness of the chocolate of each sphere is 0.65 cm.Part A: What is the amount of chocolate in each hollow sphere? Stateyour answer to the nearest tenth of a cubic centimeter.o
As given by the question
There are given that the larger diameter of each sphereis 6 cm.
Now,
(A).
From the formula of volume:
[tex]V=\frac{4}{3}\pi\times r^3[/tex]Then,
[tex]\begin{gathered} V=\frac{4}{3}\pi\times r^3 \\ V=\frac{4}{3}\pi\times(3)^3 \\ V=\frac{4}{3}\pi\times27 \\ V=4\pi\times9 \\ V=113.097 \end{gathered}[/tex]Now,
From the formula without thickness:
[tex]\begin{gathered} V=\frac{4}{3}\times\pi\times r^3 \\ V=4\times\pi\times1.5 \\ V=18.8495 \end{gathered}[/tex]Then,
[tex]\begin{gathered} V=113.097-18.8495 \\ V=94.2475 \\ V=94.2cm^3 \end{gathered}[/tex]Hence, the volume of chocolate is 94.2 cm^3.
Is AABC= ADEF? If so, name the postulate that applies.AGiven:ŁAZDZBZE
Step 1:
Knowing only angle-angle-angle (AAA) does not work because it can produce similar but not congruent triangles.
Step 2:
If the three angles (AAA) are congruent between two triangles, that does NOT mean that the triangles have to be congruent.
Final answer
Option A
Might not be congruent.
Sam has $4.30 in quarters and nickels. He has 26 coins in all. The following system of equations can be used to represent this situation. 0.25q +0.05n = 4.30 q+n=26 What does the solution to the system (q, n) represent? (4 pts.) A.There is not enough information to determine. B.The value of the quarters and nickels Sam has C.The number of quarters and the number of nickels Sam has. D.The total amount of money Sam has.
ANSWER
C.The number of quarters and the number of nickels Sam has.
EXPLANATION
We have that the system of equations representing the situation is:
0.25q + 0.05n = 4.30
q + n = 26
The solution to the system of equations (q, n) will represent the number of quarters and nickels that Sam has.
This is because the sum of q and n is 26 and we are told that Sam has 26 coins.
Therefore, we can conclude that (q, n) represents the number of quarters and nickels that Sam has.
Given 8 x = 2 y - z, solve for y if x 2 and z = 2.
Answer
y = 9
Explanation
The question wants usto solve for y, given that
8x = 2y - z
if x = 2 and z = 2
To solve this, we just substitute the given values for x and z into the given expression to get y.
8x = 2y - z
8(2) = 2y - 2
16 = 2y - 2
We can rewrite this and have
2y - 2 = 16
Add 2 to both sides
2y - 2 + 2 = 16 + 2
2y = 18
Divide both sides by 2
(2y/2) = (18/2)
y = 9
Hope this Helps!!!
can someone please help me find the valu of X
Two triangles than make the whole triangle are proportional then
[tex]15\longrightarrow30[/tex]and the upper side of the left triangle is x
we can calculate the lenght of upper triangle
[tex]36-15=21[/tex]then
[tex]21\longrightarrow x[/tex]we join the relations
[tex]\begin{gathered} 15\longrightarrow30 \\ 21\longrightarrow x \end{gathered}[/tex]we use cross-multiplication. The product of 21 by 30 dividing between 15 is equal to x
[tex]\begin{gathered} x=\frac{21\times30}{15} \\ \\ x=42 \end{gathered}[/tex]the value of x is 42 units
Convert: 3120 millimeters =centimeters
Given 1 centimeter = 10 milimeters.
To convert a number in millimeters into centimeters, divide the number by 10.
[tex]\begin{gathered} 3120millimeters=\frac{3120}{10}centimeters \\ =312centimeters \end{gathered}[/tex]Answer: 312 centimeters.
PLEAS WILL GIVE BEST RATE OR BRANILEST NEED HELP ASAP
Given figure is of a quadrilateral, with four sides.
We have, the sum of all the interior angles in a quadrileteral is 360.
Thus, we have,
[tex]80+95+38+x=360[/tex]Solving for x, we have,
[tex]\begin{gathered} x+213=360 \\ x=360-213=147 \end{gathered}[/tex]Thus, x = 147.
emily bought a pair of headphones on sale, if they usually cost 36.80, and emily purchased them at 40% how much did she pay? PLEASE GIVE ME A STEP BY STEP EXPLANATION PLEASE
Emily will pay $22.08 to buy the headphones after the discount of 40%.
Define percentage discountWhen a product is offered at a discount, the seller is reducing the product's price from what it was originally listed for. The percentage discount on the product is determined by the discount amount stated as a percentage of the original price.
Given data -
Cost of headphones - $36.80
Total price of product is considered as a 100%.
As Emily purchased them at 40%, she should be paying 60% of the amount.
Therefore, the amount she is paying to buy the headphones
= 60% of $36.80
= [tex]\frac{60}{100}[/tex] * $36.80
= 0.6 * $36.80
= $ 22.08
Emily will pay $22.08 to buy the headphones.
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2 3/4 divided by 10
Find the quotient. If possible, rename the quotient as a mixed number or a whole number. Write your answer in simplest form, using only the blanks needed.
The quotient is 11/40.
What is a mixed number?It is formed by combining three parts a whole number, a numerator and a denominator. Here, the numerator and denominator are a part of the proper fraction that makes the mixed number. These are also known as mixed fractions. It contains both an integer or a whole number. A mixed fraction or number is therefore a product of a whole number and a proper fraction.
2 3/4= 11/4
11/4 is divided by 10 then,
It becomes 11/40
So, the quotient is 11/40
Here, 11/40 cannot be converted into a mixed number.
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A real estate agent earned $1,625 for selling a property. If his commission rate is 5%, find the selling price of the property.
Let x be the selling price of the property, then we know that the 5% of x is $1,625.
Now, recall that the n% of an amount can be computed by multiplying the amount by
[tex]\frac{n}{100}\text{.}[/tex]Therefore:
[tex]x\times\frac{5}{100}=1625.[/tex]Solving the above equation for x, we get:
[tex]x=\frac{1625\times100}{5}\text{.}[/tex]Simplifying the above result, we get:
[tex]x=32500.[/tex]Answer:
[tex]32500[/tex]dollars.
Solve the following linear equation using equivalent equations to isolate the variable. Express youranswer as an integer, as a simplified fraction, or as a decimal number rounded to two places.2345 2----U43НЕ KeyAnswerHow to enter your answer (Opens in new window)Keyboard ShoU=
Given the equation
[tex]\frac{-3}{4}-\frac{2}{3}=\frac{5}{4}u-\frac{2}{3}u[/tex]We add and subtract similar terms:
[tex]-\frac{17}{12}=\frac{7}{12}u[/tex]Multiply both sides by 12:
[tex]\begin{gathered} -\frac{17}{12}\cdot12=12\cdot\frac{7}{12}u \\ -17=7u \end{gathered}[/tex]Divide both sides by 7:
[tex]\begin{gathered} -\frac{17}{7}=\frac{7u}{7} \\ u=-\frac{17}{7} \end{gathered}[/tex]Answer:
[tex]u=-\frac{17}{7}[/tex]is it possible for a rhombus to have a angle of 120 degrees and a angle of 30 degrees ? homework question
Solution:
From the properties of a Rhombus;
Opposite angles of a rhombus are equal.
The adjacent angles of a rhombus are supplementary, i.e. adds up to 180°
If one of the angles of a rhombus 120°, and the sum of the adjacent angles is 180°, then, the adjacent angle will be 60° (180° - 120° = 60°)
If one of the angles of a rhombus is 30°, then, the adjacent angle will be 150° (180° - 30° = 150°)
Thus, the sum of 120° and 30° is not supplementary and definitely can not be adjacent, since they do not sum up to 180°.
Hence, it is not possible
What is the answer for v/3-1=3
Given the initial expression
[tex]\frac{v}{3}-1=3[/tex]Solve for v as shown below
[tex]\begin{gathered} \frac{v}{3}-1=3 \\ \Rightarrow\frac{v}{3}-1+1=3+1 \\ \Rightarrow\frac{v}{3}=4 \\ \Rightarrow3\cdot\frac{v}{3}=3\cdot4 \\ \Rightarrow v=12 \end{gathered}[/tex]The answer is v=12
Find the vertex of the quadratic function below. Write your answer in fractional form if necessary. Do not use decimals.
Given quadratic expression is
[tex]f(x)=-3x^2-4x+7[/tex]Comparing with the general quadratic function
[tex]f(x)=ax^2+bx+c[/tex]We have,
[tex]a=-3,b=-4,c=7[/tex]So, the x coordinate of the vertex is
[tex]\begin{gathered} -\frac{b}{2a}=-\frac{-4}{-6} \\ =-\frac{2}{3} \end{gathered}[/tex]Now, putting the x coordinate in the equation of the given function,we have,
[tex]\begin{gathered} f(-\frac{2}{3})=-3(\frac{4}{9})-4(-\frac{2}{3})+7 \\ =-\frac{12}{9}+\frac{8}{3}+7 \\ =\frac{75}{9} \end{gathered}[/tex]So, the vertex of th egiven quadratic function is at
[tex](-\frac{2}{3},\frac{75}{9})[/tex]sherry needs to borrow $6,200 to replace the air conditioner in her home. from her credit union, sherry obtains a 30 month loan with an annual simple interest rate of 5.75% use the formula I=Prt (time in years)
Simple Interest Equation (Principal + Interest)
A = P(1 + rt)
Where:
A = Total Accrued Amount (principal + interest)
P = Principal Amount
I = Interest Amount
r = Rate of Interest per year in decimal; r = R/100
R = Rate of Interest per year as a percent; R = r * 100
t = Time Period involved in months or years
Calculation:
First, converting R percent to r a decimal
r = R/100 = 5.75%/100 = 0.0575 per year.
Putting time into years for simplicity,
30 months / 12 months/year = 2.5 years.
Solving our equation:
A = 6200(1 + (0.0575 × 2.5)) = 7091.25
A = $7,091.25
The total amount accrued, principal plus interest, from simple interest on a principal of $6,200.00 at a rate of 5.75% per year for 2.5 years (30 months) is $7,091.25.
4) A quart of liquid has a mass of 2.70 kilograms. How many quarts will take to weight 100 pounds?
We will have the following:
1)
[tex]10\operatorname{km}\cdot\frac{0.621mi}{1\operatorname{km}}=6.21mi[/tex]2)
[tex]\frac{14}{2}\frac{bales}{\text{week}}\cdot\frac{52\text{week}}{1\text{year}}=364\frac{bales}{\text{wek}}[/tex]3)
[tex]\frac{85.4\text{yard}}{5\min}\cdot\frac{1\text{min}}{60s}\cdot\frac{16\text{inch}}{1\text{yard}}\cdot\frac{2.54\operatorname{cm}}{1\text{inch}}\cdot\frac{1m}{100\operatorname{cm}}\approx0.1156885333\ldots\frac{m}{s}[/tex]4)
[tex]100lb\cdot\frac{1\operatorname{kg}}{2.2lb}\cdot\frac{1\text{quart}}{2.70\operatorname{kg}}=\frac{5000}{297}\text{quarts}\approx16.83501684\ldots quarts[/tex]***Screenshot***
c) blank + 48 minutes= 16:00
15:12
Explanation
to find the missing value we need to solve the equation
[tex]blank+48minutes=16\colon00[/tex]so, to isolate the blank subtract 48 minutes in both sides
[tex]\begin{gathered} blank+48minutes-48minutes=16\colon00-48minutes \\ blank=16\colon00-48minutes \end{gathered}[/tex]To subtract time,subtract minutes then subtract the hours, since we can not have negative minutes , add 60to minutes and subtract 1 from the hours , so
[tex]16\colon00\text{ =15 hours +60 minutes}[/tex]replace and do the subtraction
[tex]\begin{gathered} blank=16\colon00-48minutes \\ blank=15\colon00-48minutes+60\text{minutes} \\ blank=15\colon12 \end{gathered}[/tex]therefore, the answer is
15:12
I hope this helps you
Evaluate / Solve b3 + ac – bif a = 4, b=5, and c = 10.A.170B.165C.160D.125
Answer
Option C is correct.
The answer is 160.
Explanation
We are told to evaluate or solve
b³ + ac - b
if a = 4, b = 5 and c = 10
So, to solve, we will just substitute the given values into the expression to be solved
b³ + ac - b
= (5)³ + (4 × 10) - 5
= 125 + 40 - 5
= 160
Hope this Helps!!!
What is the area of the portion of the triangle that lies outside of the circle but within the triangle? Provide the answer along with an explanation of how to calculate the answer.
Answer:
Explanation:
Given:
To determine the area of the portion of the triangle that lies outside of the circle but within the triangle, we find the areas of triangle and circle first:
For the triangle, we use the formula:
A=1/2bh
where:
b=base
h=height
We plug in what we know:
[tex]\begin{gathered} A=\frac{1}{2}bh \\ =\frac{1}{2}(20ft)(20ft) \\ =\frac{1}{2}(400ft^2) \\ \text{Calculate} \\ A=200ft^2 \end{gathered}[/tex]Next, we solve for the area of the circle using the given formula:
A=πr^2
where:
r=radius
So,
[tex]\begin{gathered} A=\pi r^2 \\ =\pi(6ft)^2 \\ \text{Calculate} \\ A=113.1ft^2 \end{gathered}[/tex]Then, to find the area of the portion of the triangle that lies outside of the circle but within the triangle:
Area of the portion = Area of the Triangle - Area of the Circle
We plug in what we know:
[tex]\begin{gathered} \text{ }=200ft^2-113.1ft^2 \\ \text{Area of the portion = }86.9ft^2 \end{gathered}[/tex]Therefore, the answer is 86.9 ft^2.
Time 13.5 Time 16 Time 12.6 Time 15.2 Time 12.8 Time 11.8 Time 17.2 Time 12.1. what is the difference between Sarah's time and the mean time of the runners. I know that you divide eight by the sum when you add up all the numbers together from smallest to largest and could you answer this for me l really don't in a word problem when to multiply, add, divide,or, subtract could you ex plain or tell what the key words are that let a student know to add, multiply ,divide, subtract the key words please.
The mean of a data set is equal to the addition of the values of the data divided by the total number of values in the set.
In our problem:
[tex]\begin{gathered} \operatorname{mean}=\frac{13.5+16+12.6+15.2+12.8+11.8+17.2+12.1}{8}=\frac{111.2}{8} \\ \Rightarrow\operatorname{mean}=13.9 \end{gathered}[/tex]Although you already calculated that, as I understand from what you wrote in the question tab.
The median of a data set can be found by ordering the values in the data set from least to greatest and then taking the middle value. In our problem:
[tex]\begin{gathered} 11.8,12.1,12.6,12.8,13.5,15.2,16,17.2 \\ \Rightarrow\operatorname{median}=\frac{12.8+13.5}{2}=13.15 \\ \Rightarrow\operatorname{median}=13.15 \end{gathered}[/tex]How to divide 111.2 by 8:
The difference between Sarah's time and the mean time of the runners is:
[tex]\operatorname{mean}-\text{Sarah}=13.9-12.1=1.8[/tex]The answer we are looking for is 1.8
Convert 77.6% to an
equivalent decimal.
Answer:
Step-by-step explanation:
0.776 in decimal form.
A certain paint mixture weighing 300 lb contains 20% solids suspended in water. How many pounds of water must be allowed to evaporate to raise the concentration of solids to 22%?
27.27 lb of water must be allowed to evaporate
Explanations:Weight of the paint mixture = 300 lb
The paint mixture contains 20% solids suspended in water
Weight of solids suspended in water = (20/100) x 300
Weight of solids suspended in water = 60 lb
Let the weight of the mixture after evaporation be w
[tex]\begin{gathered} \frac{22}{100}\times w\text{ = 60} \\ 0.22w\text{ = 60} \\ w\text{ = }\frac{60}{0.22} \\ w\text{ = }272.73\text{ lb} \end{gathered}[/tex]The weight of the mixture after evaporation = 272.73lb
The weight of water that will be allowed to evaporate = 300 lb - 272.73 lb
The weight of water that will be allowed to evaporate = 27.27 lb
Therefore, 27.27 lb of water must be allowed to evaporate
Which expression is equivalent to 6c^2d^5/2c-2c^10/d^-2 ? A. 8c^11d^3B. 5c^13d^7C. 6c^11d^7D. 6c^12d^3
construct the perpendicular bisectors of each side of the triangle. Extend the bisectors until they intersect each other.
Solution:
Given:
To draw the perpendicular bisector of each side, place the compass at the two ends of the line.
Using the line WX, expand the compass to beyond half of the line and place the compass at the first point (point W), to draw an arc above and below.
Then place the compass at the other point of the line (point X), and draw an arc to intersect the initially drawn arcs.
Join the two points of intersection to get the perpendicular bisector of the line.
Repeat the same for the other two sides to get the perpendicular bisectors.