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3 years ago

Solve this system by using substitution: y=7x-10y=-3

1 answer:

6 0

Lets use substitution
y=7x-10
y=-3

so
-3=7x-10
7=7x
1=x

now lets check
y=7(1)-10
y=-3

therefore both equations have the same value

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What fraction is shaded and what percentage is shaded

olganol [36]

Answer:

a) 6/9

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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The total surface area of a cube is 96cm2, find its volume.

Setler [38]

Answer:

$\huge\boxed{V=64cm^3}$

Step-by-step explanation:

The formula of a surface area of a cube:

$SA=6a^2$

The formula of a volume of a cube:

$V=a^3$

We have

$SA=96cm^2$

Calculate the edge length (<em>a</em>).

$6a^2=96$ <em>divide both sides by 6</em>

$a^2=16\to a=\sqrt{16}\\\\a=4(cm)$

Calculate the volume of a cube:

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