If gas costs $1.35 per gallon, what is the cost to fill a 20-gallon tank?

2 Answers
Jul 26, 2018

Cost to fill a 20 gallon tank is #color(purple)($27.00#

Explanation:

Cost of one gallon of gas #= $1.35#

Cost of 20 gallons of gas #= 1.35 * 20 = $27.00#

Cost to fill a 20 gallon tank is #color(purple)($27.00#

$ #27#

Explanation:

The cost of gas per gallon is $#1.35#.

Hence the cost of #20# gallons of gas

#=20\times 1.35#

#=27#

Hence the cost of filling a #20#-gallon tank is $#27#