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-BARSIC- [3]
3 years ago
14

In the school store you can buy 20 calculators for $120 how much would 5 calculators be

Mathematics
2 answers:
Leya [2.2K]3 years ago
7 0

Answer:

you would spend $30

Step-by-step explanation:

Masja [62]3 years ago
4 0

Answer:

30 dollars

Step-by-step explanation:

120/20=6

6x5=30

Hope this helped.

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What is the base of the trapezoid with an area of 150 a height of 10 and a base of 14?
slavikrds [6]
The formula for the area of a trapezoid is:

A= (a+b)/2*h

A=150
h=10
b=14
a=?

So we need to solve for a. Let's plug in the values that we do know...

A= (a+b)/2*h
150=(a+14)/2*10
150=(a/2+14/2)*10
150=(a/2+7)*10
Divide both sides by 10
15=a/2+7
subtract 7 from both sides
8=a/2
multiply both sides by 2
16=a

The other base is 16
3 0
3 years ago
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How many hours would someone who earns $7.50 per hour have to work to earn $116.25?
Goshia [24]
Here is your answer:

Need to divide the amount he wants to the amount he gets every hour:

116.25÷7.50=15.5 hours

Which mean he has to work 15 and a half hours

Your answer is...
15.5 or if rounded 16 hours! Hope this Helps!
5 0
3 years ago
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A salad made such that the difference between twice the ounces of greens and the ounces of carrots is at least 3. Also, the sum
kap26 [50]

Answer:

3rd graph down

Step-by-step explanation:

greens are x and carrots are y in my equations

2x - y >= 3

x + 2y < 4

The first equation is solid and will highlight everything to the right of it because it is a >

the second is dashed and will highlight everything to the left of it because it is a <

the only 2 graphs that show this are 1 and 3

looking at the points you can see that the points for the solid line are both the same so ignore those and go to the dashed lined ones.

on the first graph the points are (0,4)

plugging those into our equation gives us 0 + 2*4 <4

or 8<4 which doesnt make sense making 3 the correct graph

(sorry my answer wasnt posting so i had to start over and make it less detailed, but comment if you need any explanation)

4 0
3 years ago
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Can you help me please (get brainliest)
marta [7]

9514 1404 393

Answer:

  4/25

Step-by-step explanation:

Put the numbers where the letters are and do the arithmetic.

  \left(2\cdot\dfrac{-1}{2}\cdot\dfrac{2}{5}\right)^2=\left(\dfrac{-2}{5}\right)^2=\dfrac{(-2)^2}{5^2}=\boxed{\dfrac{4}{25}}

6 0
3 years ago
Solve for x. Enter the solutions from least to greatest.<br> 4x^2 + 40x + 84 = 0
crimeas [40]

Answer:

x= -3 , -7

Step-by-step explanation:

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3 years ago
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