A car can travel 28 miles per 1 gallon of gas. How far can the car travel on 14 gallons of gas
1 answer:
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Make use of prime factorizations:
Both terms have a common factor of :
- - -
The second one is not true! We can write
Both terms have a common factor of :
Since , and
, we'd still have to show that
is a multiple of 6. This is impossible, because
and there is no multiple of 2 that can be factored out.