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RSB [31]
3 years ago
8

roys car gets an average gas mileage of 29mi/gal. Roy starts his trip with 12 gal of gas.How many gallons of gas are left after

a 140 mile trip?(only an algebraic solution can receive full credit)
Mathematics
2 answers:
kolezko [41]3 years ago
4 0
The answer is 208. The equation to get this is m=29g-140 where m is miles and g is the gallons. Plug 12 in for g and solve for m. 29 * 12 = 348, 348-140 = 208. Therefore, m=208.
jeka57 [31]3 years ago
3 0
You can use a ratio to solve this.

29/1 = 140/x

Cross multiply

29x = 140
x = about 4.8 gallons after the trip
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