Danny buys 5.2 gallons of gas for $7.54. How much is 1 gallon of gas?

Question

1078 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-20T21:48:53

$1.51

First, let's write an equation in fraction form where terms are similar; gallons on top, dollars on the bottom.

#(5gallons)/($7.54)# = #(1gallon)/(x)#

Now all we have to do is cross multiply

(5 gallons) * (x) = (5gallons)x

($7.54) * (1 gallon) = $7.54

This leaves you with $7.45 = (5gallons)x

Assuming x is in terms of USD, you can divide #($7.45)/(5gallons)#

x = #($1.508)/(1 gallon)# = #($1.51)/(1 gallon)# (rounded)