Question

(a)At Cheng's Bike Rentals, it costs $42 to rent a bike for 9 hours.How many dollars does it cost per hour of bike use? dollar per hour (b)A color printer prints 14b pages in 6 minutes.How many minutes does it take per page? minute per page

Answer 1

46.7 per hour
0.43 mins per page

Answer 2

a. 4.67 dollars per hour

b. 0.43 minutes per page

Step-by-step explanation:

Part a.

To know the cost per hour of bike use, we need to divide the total cost by the number of hours, so:

`(Cost)/(Hours)=\frac{\text{ \$42}}{9\text{ hours}}=\text{ \$4.67 per hour}`

So, the cost is 4.67 dollars per hour

Part b.

In the same way, the number of minutes per page can be calculated as the division of the number of minutes by the number of pages, so:

`\frac{\text{ Minutes}}{Pages}=\frac{6\text{ minutes}}{14\text{ pages}}=0.43\text{ minutes per page}`

So, it takes 0.43 minutes per page.