3 years ago

For the following system, use the second equation to make a substitution for x in the first equation.

1 answer:

3 0

The answer is B. In the second equation, when you solve for x, it will be equal to y - 3. Then substitute that with x and 3(y - 3) +2y = 7 is what you get.

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Given the proportional steel cost, how much do 200 pounds of steel cost?

kotegsom [21]

Answer:

Your answer is B, 150

Step-by-step explanation:

If we look at the chart it says 160 pounds of steel is 120, so for example if we start from 40 we will have 30, so every time we add 40 pounds 30$ are added, meaning that 160+40=200, 120+30= 150, Thus B or 150 is our answer.

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3 years ago

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The darnells are having a swimming pool installed. the pool has a radius of 14 feet and a height of 4 feet. what is the volume o

Drupady [299]

Answer: 2461.76 cubic feet

Step-by-step explanation:

$V=\pi r^{2} h\\\\V=(\pi)(14^{2})(4)\\\\V\approx (3.14)(14^{2})(4)=\boxed{2461.76}$