Question

1. the formula for body mass index is bmi = w/h²×703, where w is a persons weight (in pounds) and h is a persons height (in inches). find the weight of a 13 - year - old boy that is 60 inches tall and has a bmi of 20.5.

r. 105 pounds
s. 112 pounds
q. 98 pounds

1. the formula d = rt relates distance d to rate r and time t. find how long it takes an airplane to fly 375 miles at 500 miles per hour.

t. 35 minutes
u. 40 minutes
v. 45 minutes

Explanation:

Step1: Identify the formula and given values

The formula is $d = rt$, where $d = 375$ miles and $r=500$ miles per hour. We need to find $t$.

Step2: Rearrange the formula to solve for $t$

From $d = rt$, we can get $t=\frac{d}{r}$.

Step3: Substitute the values into the formula

$t=\frac{375}{500}=0.75$ hours. Since 1 hour = 60 minutes, $0.75\times60 = 45$ minutes.

Answer:

45 minutes