Question

On are recent 160 mile road trip ciara's car used 7 3/4 gallons of gas. how many gallons should she expect to use on a 250 mile road trip

Answer 1

Ciara should expect to usr 10 2/4 gallons of gas

Answer 2

12.11 gallons

Explanation:

Ciara's car used gas on 160 mile road trip =
`7(3)/(4)` gallons

=
`(31)/(4)` gallons

Ciara's car used gas on 1 mile road trip =
`((31)/(4))/(160)`

=
`(31)/(4)* (1)/(160)`

=
`(31)/(640)` gallons

Ciara expect to use on a 250 mile road trip =
`(31)/(640)* 250`

=
`(775)/(64)`

=
`12(7)/(64)`

≈ 12.11 gallons

Ciara should expect to use
`12(7)/(64)` or 12.11 gallons of gas.