Someone help me with this ASAP please I’m being timed !
1 answer:
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Answer:
- The surface area of Cylinder B is 16 times the surface area of Cylinder A
Step-by-step explanation:
<u>Note</u>: <em>It is assumed we are looking at the total surface area (but the answer would be same for both cases)</em>
<h3>Given</h3>- Cylinders A with radius - r, height - h,
- Cylinder B with radius - 4r, height - 4h.
- The ratio of total surface areas of cylinder B to A
Total surface area of cylinder A is:
Total surface area of cylinder B is:
Find the ratio of areas:
Answer:
The constant of proportionality for this situation is 3.2
Step-by-step explanation:
For the given situation we can say that, the amount spent to fill the gas directly varies with the number of gallons of gas filled.
We can say,
where is the constant of proportionality which is nothing but the units rate of gas in dollars per gallon.
Dividing both sides by 22.5 to find
∴
Unit rate of gas = $3.2/gallon
∴ The constant of proportionality for this situation is 3.2.