Step-by-step explanation:
-3x + 7y = 5x + 2y (you subtract the 2y from both sides)
-3× + 5y = 5x (then add 3x to both sides)
5y = 8x (use x = - 5)
5y = 8x - 5 = -40 (both sides are divided by 5)
y = -8
answer is (-5, -8)
Answer:
G 15.99h > 188.55 + 9.75h
Step-by-step explanation:
A number is :

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Three quarters of it means :

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Decrease by 20 means :

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Equals to 82 means :

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What is that number ?
x asked so we must solve the above equation for x.
Let's do it....

Plus sides 20


Multiply sides by 4

Divided sides by 3


Simplify


So that number is 136 .
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And we're done.
Thanks for watching buddy good luck.
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Answer:
s = 1/10
Step-by-step explanation:
First, divide both sides by 4 to get s by itself.
(2/5) / 4 = 1/10
s = 1/10
Answer:
Radius of the sphere is 5m.
Step-by-step explanation:
We have given the volume of sphere 
we have to find the radius of the sphere

On substituting the given value of volume of sphere we get

After simplification we get:



Hence, the radius of sphere is 5m