Answer:
Step-by-step explanation:
h and p are the number of history and psych textbooks, respectively.
store sold a total of 411 textbooks in a week.
h + p = 411
The number of history textbooks sold was 69 less than the number of psychology textbooks sold.
h = p - 69
Substitution
(p-69) + p = 411
2p = 411+69
p = 240
h = p-69 = 171
171 history books and 250 psych books
The sides of a polygon are 3cm,5cm,6cm,8cm and 10cm.The perimeter of a similar polygons is 48cm.Find the sides of the second polygon.
Answer:
[tex]a'=4.5[/tex]
[tex]b'=7.5[/tex]
[tex]c'=9[/tex]
[tex]d'=12[/tex]
[tex]e'=15[/tex]
Step-by-step explanation:
From the question we are told that:
Sides of Polygon 1
a=3
b=5
c=6
d=8
e=10
Perimeter of polygon 2 P_2=48
Generally the equation for Polygon 1 is mathematically given by
P_1=a+b+c+d+e
P_1=3+5+6+8+10
P_1=32
Generally the sides of similar polygon with Perimeter P_2=48 is mathematically given by
Side\ of\ polygon\ 2 =\frac{side\ of\ polygon\ 1}{perimeter\ of\ polygon\ 1}*perimeter\ of\ polygon\ 2
Therefore
[tex]a'=\frac{a}{P_1}*P_2\\a'=\frac{3}{32}*48[/tex]
[tex]a'=4.5[/tex]
[tex]b'=\frac{b}{P_1}*P_2\\b'=\frac{5}{32}*48[/tex]
[tex]b'=7.5[/tex]
[tex]c'=\frac{c}{P_1}*P_2\\c'=\frac{6}{32}*48[/tex]
[tex]c'=9[/tex]
[tex]d'=\frac{d}{P_1}*P_2\\d'=\frac{8}{32}*48[/tex]
[tex]d'=12[/tex]
[tex]e'=\frac{e}{P_1}*P_2\\e'=\frac{10}{32}*48[/tex]
[tex]e'=15[/tex]
Can an isosceles triangle be an acute triangle as well?
PLZZZ I HAVE 10 MINUTES
Answer:
Option D is correct
Step-by-step explanation:
When a cube with sides numbered 1 through 6 is rolled one time, the possible events are six i.e. getting {1,2,3,4,5,6} , with equal probability for each.
Of these, the events for which we get 4 or greater are {4,5,6} i.e. three events.
Hence probability of getting 4 or greater is
[tex] \frac{3}{6} = \frac{1}{2} [/tex]
Hope it is helpful....Write the number in 2 equivalent forms as a fraction, decimal, or percent.
0.96
What is the equivalent fraction?
Answer:
96% percent and fraction is 24/25
Answer: Down below
Step-by-step explanation:
64 % = 16 / 25
21 / 50 = 0. 42
9 / 25 = 36 %
2 / 5 = 40 %
/ = divide okay
The lowest elevation in Nevada is about 65
meters below sea level. The lowest elevation in
Florida is about 2/5the value of the lowest
elevation in Nevada. Which value best represents
the lowest elevation, in meters, in Florida?
Answer:
-26 meters
Step-by-step explanation:
first do 65/5 because it is asking how much less florida´s elevation is than nevada´s. and because it is a fraction you do it divided by 5.
65/5=13
so now because the fraction was 2/5 do 13+13
you get 26. so florida´s lowest point is -26 meters.
In the year 2000, the population of a city was 600,000 citizens. The population increases at a rate of 1.8% per year.
a. Create and graph a function to model the population, y , (in thousands), x years after 2000.
b. In complete sentences, interpret the relationship between the rate of change of the function and its graph.
c. Predict the population of the city in the year 2012.
In your final answer, be sure to include your model, graph, interpretation, and prediction of the function.
Answer:
a) 600,000 (1.018)ᵗ, the graph is below:
* "t" is the years. 2000 is the first year, so "t" would be 1. 2012 is the 12th year so "t" would be 12.
b) As the years go by, the population increases. The years (X), and population (Y) both increase together. The graph shows that when the years increase the population increases.
c) In 2012, which would be 12 years later, I predict the population would be around 743,232 people.
Step-by-step explanation:
MRK ME BRAINLIEST PLZZZZZZZZZZZ
Allen finds the area of the woods to be 6600 square feet. Why is Allen
incorrect?
A: Allen is incorrect because he applied the scale to the sides and then
multiplied the width and the length together.
B: Allen is incorrect because he multiplied the length and the width and then
applied the scale.
C: Allen is incorrect because he did not apply the scale.
D: Allen is incorrect because he used the formula to find perimeter instead of
area.
Answer: C
Step-by-step explanation:
Whats the answer to this?
Answer:
option D
Step-by-step explanation:
:)
how many number from 1-100 are divisible by 3 or 4
Which set of side lengths could be used to form a
right triangle?
7.5 in., 18 in., 21.5 in.
7.5 in., 18 in., 19.5 in.
7.5 in., 19.5 in., 21.5 in.
18 in., 19.5 in., 21.5 in.
All sides of a right triangle are different lengths.
The shortest being the leg in which is opposite to the smallest angle on the standard right triangle (30 degrees). The side with the longest length is always the hypotenuse (point a-c).
Therefore, both answer a and b are eliminated considering two sides of the triangle have equivalent lengths.
Answer: C
You can use the Pythagorean theorem to check your answer (a^2+b^2=c^2)
The diameter of a circle is 14 ft. Find its area to the nearest tenth.
Answer:
615.8
Step-by-step explanation:
A=πr2=π·142≈615.75216
Answer:
Solution given:.
diameter=14ft
radius [r]=14/2=7ft
Now
Area of circle =πr²=π×7²=154ft²
Hi guys I need help with these questions help assap what y’all think is the answer there are two different questions it shows I clicked a answer but I haven’t surely think what is the answer plz help :0
Answer:
[tex]your \: answers \: are \: correct[/tex]
Acute Angle - An angle less than 90 degrees.
Right Angle - An angle that is exactly 90 degrees.
Obtuse Angle - An angle more than 90 degrees and less than 180 degrees.
Straight Angle - An angle that is exactly 180 degrees
full angle =360
PLS HELP !!!!!!!
i rlly need this T__T
Answer:
(3,4) -> (8,3)
(-2,4) -> (3,3)
(-2,5) -> (3,4)
The triangle is translated 5 units to the right and 1 unit down.
Step-by-step explanation:
Add 5 to each x on the (x,y) coordinate and subtract 1 from each y.
x − 7y = 8 for x. and the choices are
A x = −7y + 8
B x = −7y − 8
C x = 7y − 8
D x = 7y + 8
Which angles are vertical angles?
Answer:
it's between BCF/DCA and BCF/BCA
Will give brainlist!!
Answer:
D because if we see the graph the 6 grades has alot of variety, well more than the 8 grades
Volume (look at the picture)
Answer:
72
Step-by-step explanation:
volume = l x w x h
4 x 3 x 6
What is the perimeter of the quadrilateral?
13 inches
12 inches
12.3 inches
13.2 inches
Answer:
12.3 in
Step-by-step explanation:
[tex]P = 4.1 + 2.2 + 3 + 3 = 12.3\ in[/tex]
;-; i'm stuck again
please help
Answer:
The answer is 49 squar cm
Step-by-step explanation:
7x7=49
John put $3000 in his savings at 2% annually for 3 years. What did he earn in simple interest?
Answer:
i dont know
Step-by-step explanation:
i forgot
Answer:
I have no idea sorry
Step-by-step explanation:
Search it up it always works for me lol
What is the answer to -12= x -5?
Answer:
Step-by-step explanation:
-12 = x-5
5-12 = x -5 + 5
-7 = x
there you go :)
Answer:
x = -7
Step-by-step explanation:
1. Write the equation.
-12 = x - 5
2. Since 5 is negative and we want to leave x by itself, add 5 to both sides. Adding 5 with cancel out the -5.
-12 +5 = x -5 +5
3. When you add +5 to -12, the equation you are left with will be:
-7 = x
Hope this helps :)
pls help me I will make u an brainest
Gaussville’s soccer team won 40% of their first 40 games. They went on to win
n games in a row. At this point, they had won 50% of the total games they had
played. What is the value of n?
(A) 4 (B) 10 (C) 12 (D) 8 (E) 9
Answer:
D) 8Step-by-step explanation:
A is 45% win rate - incorrect
B is 52% win rate - incorrect
C is 54% win rate - inncorrect
D is 50% win rate - correct
E) is 51 win rate - incorrect
The value of N is 8.
Since Gaussville's soccer team won 40% of their first 40 games, and then they went on to win N games in a row, and at this point, they had won 50% of the total games they had played, to determine what is the value of N the following calculation must be performed:
40 x 0.4 = 16 40 + 4 /// 16 + 4 = 44 /// 20 40 + 10 /// 16 + 10 = 50 /// 26 40 + 8 /// 16 + 8 = 48 /// 24
Therefore, the value of N is 8.
Learn more in https://brainly.com/question/18296528
Ilus
Translate algebraic words to symbols.
Half of R subtracted from y cubed
A. 1/2R - y3
B. y3 - R/2
C. R/2 - 3y
D. 3/y - R/2
Answer:
[tex]\bold{B.\quad \ y^3-\dfrac R2}[/tex]Step-by-step explanation:
"half of R" it is: [tex]\dfrac R2[/tex]
"y cubed" it is: [tex]y^3[/tex]
Therefore, half of R subtracted from y cubed is: [tex]y^3-\dfrac R2[/tex]
Max surveyed 100 of the 200 7th graders that attend his school to help determine new lunch choices in the lunch room. He has come up with these findings.
Which statement is supported by the information in his graphs?
A
It can be inferred that on the days that students are offered pizza and salad, 70% of students are pleased with the offerings.
B
It can be inferred that about the same number of students get a salad as the number of students that like cheeseburgers and tacos combined.
C
It can be inferred that pizza and chicken nuggets should be the only meals offered in the cafeteria to please the most students each day.
D
It can be inferred that if the lunchroom offered cheeseburgers and tacos on the same day, every student would get a tray that day.
Answer:
It can be inferred that pizza and chicken nuggets should be the only meals offered in the cafeteria to please the most students each day.
Step-by-step explanation:
From barchart, we can observe that ; the both pizza and chicken nugget have the highest number of 7th grade students who prefer them. Hence, with these numbers, most students will be pleased if these are the food options served each day.
David has a thousand trees.
He wants to plant the trees in rows.
He wants 73 trees in each row.
How many full rows of trees can David plant?
Answer:
13
Step-by-step explanation:
1000 / 73 = 13.69 , but it asks for full rows so you get rid of the decimal if it can't be round up to a whole number
Answer:
ANSWER:
13
So he can make 13 full rows of 73 trees
and 69 in another row
Use the information below to answer the next 4 questions.
Renee, Susan, and Martha will share the cost to rent a vacation house for a week.
Renee will pay 40% of the cost.
Susan will pay .35 of the cost.
Martha will pay the remainder of the cost.
Answer:
ok
Step-by-step explanation:
lol
is it prependicular or overlapping
What is the volume, in cubic feet, of a cylinder with a height of 20 feet and a base radius of 4 feet,round to the nearest tenths place.
Answer:
1005.3
Step-by-step explanation:
V=πr²h =π×4²×20 = 1005.3 rounded to the nearest tenths place.
Answer:
1005.3
Step-by-step explanation:
Volume = πr2h
= π×42×20
= 320π
= 1005.3096491487 feet3
Devon ends up paying extra 28% in intrest, if the ps5 is 500 how much did he pay in intrest?
Answer:
780
Step-by-step explanation:
i think sorry if it is wrong
what do you observe with the wavelength and frequency of the different colors?
what did you observe with the product of wavelength and frequency for each color? what is the significance of this value?
what can you say about the speed of the different colors?
Answer:
The responses to the given question can be defined as follows:
Step-by-step explanation:
Its color palette depends on how much radiation reaches the eyes or the intensity of it. If indeed the duration of a wave is less than 400 nm, it is called UV and much more than 750 nm simple pleasures light it is (IV). The shorter wavelength implies a much more frequent spectrum and lower frequencies are the longer wavelengths.
The shorter the distance, the higher it's indeed. Since the red duration has been longer, the intensity is low. The purple has a smaller range and a high frequency, on the other side. The wavelengths are shorter as well as the frequencies are lower than the red, and it will differ even as violet goes, Remember that even more power is provided with the longer the duration of color. That wave/frequency color rises and is longer the purple color is becoming the lowest color.