10. The pressure on a jet pump increases from 20 to 30 p.s.i. (pounds per square inch). What's the percent increase?

Question

UpStudy AI · Accepted Answer

To calculate the percent increase in pressure, you can use the formula:

$$
\text{Percent Increase} = \left( \frac{\text{New Value} - \text{Old Value}}{\text{Old Value}} \right) \times 100
$$

In this case, the old value is 20 p.s.i. and the new value is 30 p.s.i.

1. Calculate the difference:
   $$
   \text{New Value} - \text{Old Value} = 30 - 20 = 10
   $$

2. Divide the difference by the old value:
   $$
   \frac{10}{20} = 0.5
   $$

3. Multiply by 100 to get the percent increase:
   $$
   0.5 \times 100 = 50\%
   $$

Therefore, the percent increase in pressure is **50%**.
The percent increase in pressure is 50%.

The pressure on a jet pump increases from 20 to 30 p.s.i. (pounds per square
inch). What’s the percent increase?