SAT Math Practice: Rates Practice 01

1. Water is draining out of a tub at a rate of 7 liters per minute. If there are 32 liters in the tub now, how many liters will be in the tank after $m$ minutes?

$32+7m$

$32-7m$

$32m-7$

$32m+7$

2. A vehicle is traveling at a rate of 300 meters per second. If the vehicle had already traveled 200 meters from its original starting point, how far would it have traveled total after $s$ seconds?

$200+30s$

$200-30s$

$200s+30$

$200s-30$

3. If a truck gets 20 mpg, how many gallons of gas are needed in order to travel 100 miles?

$5$

$20$

$100$

$2000$

4. Josie’s car can get 20 kilometers per gallon when traveling at 6 kilometers per minute. The gas tank of the car has 25 gallons in it before Josie starts driving. If Josie drives 6 kilometers per minute, which of the following functions $f$ models the number of gallons of gas remaining in the tank $m$ minutes after the trip began?

$f(m)=\dfrac{3}{10}m-25$

$f(m)=25-\dfrac{10}{3}m$

$f(m)=\dfrac{25-3m}{10}$

$f(m)=25-\dfrac{3}{10}m$

5. Alfred’s car can get 30 miles per gallon when traveling at 65 miles per hour. The gas tank of the car has 18 gallons in it before Alfred starts driving. If Alfred drives 65 miles per hour, which of the following functions $f$ models the number of gallons of gas remaining in the tank $m$ minutes after the trip began?

$f(m)=18-\dfrac{13}{6}m$

$f(m)=18-\dfrac{6}{13}m$

$f(m)=18-\dfrac{360}{13}m$

$f(m)=18-\dfrac{13}{360}m$