Question

Please help I don’t know which to multiply or devide

Answer 1

0.17 hours per dollar

3 pages per minute

Step-by-step explanation

A unit rate means a rate for one of something,where the bottom number is 1

to find the unit rate we need to use the formula

`unit\text{ rate=}\frac{total\text{ time/ amount}}{total\text{ cost}}`

so

Step 1

a) let

`\begin{gathered} total\text{ cost = \$23} \\ time\text{ = \$ 4 hours} \end{gathered}`

b) now, replace in the formula

`\begin{gathered} unit\text{ rate=}\frac{total\text{ time/ amount}}{total\text{ cost}} \\ unit\text{ rate= }\frac{4\text{ hours}}{\text{ \$}23}=0.174\text{ hours per dollar} \end{gathered}`

so, the answer is 0.17 hours per dollar

Step 2

to find the number of pages per minute we need to divide the total number of pages by the time,so

`unit\text{ rate=}\frac{total\text{ pages}}{total\text{ time}}`

a) let

number of pages = 12

time = 4minutes

b)now, replace in the expression

`\begin{gathered} unit\text{ rate=}\frac{total\text{ pages}}{total\text{ time}} \\ unit\text{ rate=}\frac{12\text{ pages}}{4minutes}=3\text{ pages per minute} \end{gathered}`

so, the answer is

3 pages per minute

I hope this helps you

0.17 hours per dollar