Question

Miranda’s car travel 40 miles on 1 3/8 gallons of gas. Miranda wants to travel 80 miles. How many gallons of gas will her car use?

Answer 1

Answer:

13/4 gallons will take her to travel 80 miles

Step-by-step explanation:

                40miles ---------------- 13/8 gallons

first will need to get how many gallons will it take to travel 1 mile?

               40miles ---------------- 13/8 gallons

                1 miles ----------------  ? (x)

by cross multiplication =  40 * (x) = 1 * 13/8

                                         40x = 13/8

therefore    $\frac{40x}{40}$ = $\frac{13}{8}$ /40

                   $\frac{40x}{40}$ =  $\frac{13}{8}$ * $\frac{1}{40}$

              x = 13/320

therefore,   1 miles ----------------  13/320

                  80 miles ---------------- ? (x)

by also cross multiplying,  80 * 13/320 = 1 * (x)

                                 therefore, x = 13/4 gallons

Answer 2

The amount of gallons used is 2.75 gallons

Given that Miranda’s car travels 40 miles on 1 3/8 gallons of gas, this can be expressed as:

• 40 miles = 11/8 gallons

If Miranda wants to travel 80 miles, this can be expressed as;

• 80 miles = x

Cross multiply

40x = 80 * 11/8

40x = 10 * 11

40x = 110

x = 110/40

x = 2.75 gallons

Hence the amount of gallons used is 2.75 gallons

Learn more on proportions here: https://brainly.com/question/870035