Question

find the unit rate. check the reasonableness of the unit rate in the given context.

1. it rains 28 inches in 8 hours.
2. you pay $2.73 for 100 sheets of paper.
3. a plane flies 2275 miles in 3.5 hours.
4. you are paid $90 for delivering newspapers for 6 days.

Explanation:

Step1: Calculate rain unit rate

Divide total inches by hours:
$\frac{28}{8} = 3.5$ inches per hour

Step2: Calculate paper cost unit rate

Divide total cost by sheets:
$\frac{2.73}{100} = 0.0273$ dollars per sheet

Step3: Calculate plane speed unit rate

Divide total miles by hours:
$\frac{2275}{3.5} = 650$ miles per hour

Step4: Calculate delivery pay unit rate

Divide total pay by days:
$\frac{90}{6} = 15$ dollars per day

Answer:

1. 3.5 inches of rain per hour
2. $0.0273 per sheet of paper
3. 650 miles per hour
4. $15 per day