A car uses one gallon of gasoline for every 20 miles. If a gallon of gasoline costs $3.98, how much will the gas cost , to the n
earest dollar , to travel 180 miles ?
2 answers:
<span>(1 gallon)/(20 miles) = (x gallons)/(180 miles)
1/20 = x/180
1*180 = 20x
180 = 20x
20x = 180
</span><span>x = 180/20
x = 9
It takes 9 gallons of gas to drive 180 miles
(9 gallons)*(3.98 dollars/1 gallon) = 9*3.98 dollars = 35.82
Round to the nearest dollar: 35.82 ---> 36
It costs $36 to travel 180 miles</span>
Answer:
Step-by-step explanation:
The way you would do it is:
1 gallon/20 miles = x gallons/ 180 miles bc of same units
then you cross multiple and get
20x=180
which simplifies to 9
know . you know that the how much gallons of gas it takes then you multiply
9 x $3.98
but you have to round to the nearest whole number so you do
9x 4 = 36
So the answer is it cost $36 to travel 180 miles in Ethans car
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