Im trying to do IXL and I dont understand the way my teacher teaches (ironic right?)
the points (-9,-3) and (-2,r) fall on a line with a slope of 1/7. What is the value of r?
If its not right im gonna report you
Answer:
r = - 2
Step-by-step explanation:
Calculate the slope m using the slope formula and equate to [tex]\frac{1}{7}[/tex]
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 9, - 3) and (x₂, y₂ ) = (- 2, r)
m = [tex]\frac{r+3}{-2+9}[/tex] , that is
[tex]\frac{r+3}{7}[/tex] = [tex]\frac{1}{7}[/tex] ( cross- multiply )
7(r + 3) = 7 ( divide both sides by 7 )
r + 3 = 1 ( subtract 3 from both sides )
r = - 2
David worked seven hours and earned $117.25. If he earned $670, how many hours did he work?
I believe the answer is 78557.5 hours
Answer:
40 hours
Step-by-step explanation:
$117.25 / 7 hours = $16.75 an hour
$670 / $16.75 = 40 hours
Show all work to solve this problem. The budget for a new kitchen includes $3,000 for new kitchen equipment. The chef spent $90 of that money for new aprons. What percent of the money for new kitchen equipment was spent on aprons?
total budget = $3000
cost of apron = $90
so
peecentage of money spent on apron = ($90/$3000)*100%
= 3/100 * 100%
= 3%
so 3%of money was spent on apron
ASAP HELP WANTED NOW!
During a game of tug-of-war, your teacher states that your team’s current position is -5 steps. What does this statement mean?
A. Your team is 5 steps forward from the starting point.
B. Your team is 5 steps back from the starting point.
C. The distance between your team and the other team is 5 steps.
D. Your team just took 5 steps forward.
pls help asap giving out brainliest and high stars <33 7TH GRADE
1.) On Monday, 437 students went on a trip to the zoo. All 8 buses were filled and 5 students had to travel in cars. How many students were in each bus?
2.) Mike buys four equally priced DVD’s online. Each DVD costs the same amount. With a $5.98 shipping charge included, the total cost came to $79.94. Write and solve an equation to find the cost of each DVD.
3.) A rectangle has a length of 3 ⅞ inches and an area of 6 15/16 square inches. Write an equation that represents the area of the rectangle in terms of its length and width, w.
Answer:
1 i think
Step-by-step explanation:
Fill in the blanks below in order to justify whether or not the mapping shown represents a function.
Set A
Set B
7
-3
-1
6
5
-4
9
Answer:
not a function.
Step-by-step explanation:
the x value/set a has to have 1 line from each but the -3 has 2 lines, therefore not a function
The ratio of one lengths of corresponding sides of two similar hexagons is 4:7. Find the ratios of their PERIMETERS.
9514 1404 393
Answer:
4 : 7
Step-by-step explanation:
The ratio of perimeters is exactly the same as the ratio of side lengths. Multiplying each side by 7/4 multiplies the sum of the sides by 7/4.
The ratio of perimeters is 4 : 7.
Find the mean, median, mode, and range for the following data:
85, 42, 12, 104, 42, 16, 13, 41, 50
Mean:
Median:
Mode:
Range:
help answer if u know
Answer:
b = 6 / 1/4
Step-by-step explanation:
C)
Brianna went shopping for a new video game because of a sale. The store was offering a 15% discount. If the price on the tag was $23, what would be the price after the discount but before tax, to the nearest dollar and cent?
Answer:
Is it going to be $19.55?
Step-by-step explanation:
Answer:
The answer I got is $3.45, don't know if it's correct, I think the guy above me might be right tho-
Your final bill at the restaurant is $120 including a 20% tip. What was the cost of the original bill?
Answer:
$96
Step-by-step explanation:
120 x 0.20= 96
hope this helps
PLEASE HELP- THIS IS DUE AT 2PM PLSSSS HELPPPP QUICKKKK!! WILL MARK BRAINLIEST
There are three parts to this problem. Solve each percent word problem and show your setup for each one.
You have r rare coins, consisting of p pennies and n nickels.
1. p is 20% of 190. How many pennies do you have?
2. 190 is 200% of r. How many rare coins do you have?
3. n is 60% of r. How many nickels do you have?
Answer:
1. p=38 pennies. 2 r= 95 rare coins. 3. n=57 nickels
Step-by-step explanation:
1. how you get it is .20 x 190
2. 190/2 =2/3 x r
3. .60 x 95
COLTONMCGHEE27!!!!!!!!!!!!!!!!!!!!!!! HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! PLZZZZZZZZZZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Will mark brainly
3/5(20-15x)+8x=13
What is the value of 'x'?
Write and solve an equation that can be used to find x, in the figure below:
Answer: x=40
Step-by-step explanation:
so you would add the two angles you already know.
30+63=93
The sum of the angles of a triangle is always 180°. Knowing this, you can do
180-93=87
so you know the third angle is 87°
plug this into the equation: 2x+7
2x+7=87
subtract both sides by 7
2x=80
divide by two
x=40
(HELP PLEASE FAST)!! Parish Press, a local coffee shop, purchases 500 cups for $15. How much does Parish Press pay per cup?
Answer:
$0.03
Step-by-step explanation:
15/500
0.03
I sincerely apologize for such a minor mistake. My fault completely. I was supposed to divide them the other way. Like I said in the comments, I'm an 8th grader and shouldn't be making silly mistakes as such.
Hope you have a better day, and good luck! >.<
If the circumference of the circle above is 37.68 units, what is the area? Use = 3.14.
Circumference=2piR
Area=piRsqaured
A.
113.04 units2
B.
75.36 units2
C.
18.84 units2
D.
1,419.78 units2
Answer:
The answer is: A.113.04 units2
Step-by-step explanation:
The radius of a circle is 3 in. Find its area in terms of π.
Please help :(
Answer:
A≈28.27
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
What is the number of terms in this expression?
m/5+4⋅6
Answer:
I think the answer is two but I could be wrong
solve this please
3(2y+3)-4y=-3
Answer:
=−6
Step-by-step explanation:
Answer:
y= -6
Step-by-step explanation:
First step: Distribute the 3 (times everything in the parintheses by 3)
6y+9-4y=-3
Then, Combine like terms
2y+9=-3
Subtract 9 from both sides
2y=-12
Divide by 2
y=-6
I need help images below
Answer:
25.48 and 289.38
Step-by-step explanation:
if circumference=pi*diameter we can rearrange it with algebra from c=pi*d to say d=c/pi and plug in the values and get the answer. the second one we say since area=pi*r^2 and were given r we plug in the values to find the answer.
an item was selling for %68.00 is reduced to $57.00 find the percent decreased in price
Answer:
Not enough info
Step-by-step explanation:
There needs to be a second number
Now consider the family of lines ax + by = c such that a, b and c are consecutive multiples of each other. what would that mean? give some examples of such lines in this family (coordinates.) what do you notice or wonder?
Answer:
The first thing that was a good app is the app it needs a little bit of the app and it keeps crashing when it comes to my iPad to play with the iPhone and iPad version of my iPad to get my iPhone and iPhone app for my iPad to use it on the iPad app to get a iPhone app for my iPad iPad to get the iPhone version of my iPad version and I can get a few of my iPhone and iPhone version
Step-by-step explanation:
Complete the equation: 77x – 49 = 7 ( _____ )
A. 11x + 7
B. 11x – 7
C. 70x – 42
D. 539x – 343
Can somebody please help me out with this. We have to do it point slope form.
[tex]y - y_{1} = m( x - x_{1})[/tex]
Explanation:
The formula y - y1 = m(x - x1) is usually described as the 'point-slope form' for the equation of a line. It is useful because if you know one point on a certain line and the slope of that certain line, then you can define the line with this type of formula and, thus, find all the other points on that certain line.
Please help me asap! I'm really struggling.
Tomas has $1,000 to spend on a vacation. His plane ticket costs $348.25. If he stays 5.5 days at his destination, how much can he spend each day? Write an inequality and then solve.
I will vote brainlyest!
Answer:
I answer is in your question
Maria's backyard pool is in the shape of a rectangular prism.
The pool is 5 m wide and 8 m long. It holds 60 m³ of water.
a.) What is the depth of the water?
b.) Maria has to decrease the depth by 0.5 m for the winter. How much water does she take out?
Answer:
A. 1.5 m deep
B. 20 m^3
Step-by-step explanation:
Brainliest ofr right answer go bless
Answer:
4 is the right answer
Step-by-step explanation:
1) 6.50
2) 6.00
3) 7.00
4) 7.20
hey if yall can help me that would be great
A groundskeeper needs grass seed to cover a circular field, 290 feet in diameter.
A store sells 50-pound bags of grass seed. one pound of grass seed covers about 400 square feet of field.
How many square feet does each 50-pound bag cover?
Answer:
4 bags
Step-by-step explanation:
A = r²
A = 3.14 * 145² = 66,018.5 ft²
66,018.5 ÷ 400 ≈ 165.05 lb.
165.05 ÷ 50 ≈ 4 bags
Help please! I attached the picture you get 20 points!!
Answer:
<1=48
<2=132
<3=48
Step-by-step explanation:
We know that <2 is also 132
Since a line is 180, we can do 180-132=48
That means <1 and <3 are 48
To check we can add them all together and get 360
Answer:
1 and 3 is 48 and 2 is 132
Step-by-step explanation:
please mark as brainllest have nice day god bless you
[o]-[o]
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