Aponi and Regina both leave the bookstore at the same time, but in opposite directions. If Aponi travels 7 mph and Regina travels 11 mph, how long until they are 54 miles apart?

Solución

Solución

time : 3

Pasos de solución

Translate the problem into an equation:

7 x + 11 x = 54

Resolver para

x, 7 x + 11 x = 54 : x = 3

time : 3

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