Trina's car uses 10 gallons of gas to travel 120 miles.  if she has 5 gallons of gas in the tank, how much more gas will she need to drive 204 miles?

12 gallons

Step-by-step explanation:

Use proportion to estimate how much gas she needs for 204 miles.

10:120=x:204

204*10=120x

x=2040/120

x=17 gallons

For 204 mile trip Trina needs 17 gallons of gas. She has 5 gallons.

17-5=12

She will need 12 gallons of gas.

by definition, an arc subtended by a central angle of some given measure has the same measure. so .

answer: 2x + 2 − 2 = 10 − 2; subtraction property of equality

step-by-step explanation: