3 years ago

Complete the table so there is a proportional relationship between cups of blue paint and cups of red paint.

Mathematics

1 answer:

stich3 [128]3 years ago

3 0

Answer:

Blue paint: 1, 2, 2.8, 10

Red paint: 2.5, 5, 7, 25

Step-by-step explanation:

constant of proportionality: 2.5

2.5x = y

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3 years ago

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4 years ago

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3 years ago

Read 2 more answers

Please help thanks so much

Umnica [9.8K]

The formula for the volume of a sphere is the following:

$V= \dfrac{4}{3} \pi r^3$

Plug in V=5000π and solve for the radius.

$5000 \pi = \dfrac{4}{3} \pi r^3$

Divide both sides by $\pi$

$5000 = \dfrac{4}{3} r^3$

Multiply both sides by 3/4 (to eliminate the 4/3 on the right side)
Also, flip the equation so we have the unknown variable on the left side (math etiquette).

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Take the cube root of both sides

$r \approx 15.5$

Now, calculate the surface area since now we know the radius.
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$S=4 \pi r^2$

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The second choice is your answer.

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3 years ago