two trucks start from the same point traveling in different directions. One truck travels at a speed of 54 miles per hour, the other at 48 miles per hour.How long must they travel to be at least 408 miles apart?

Solution

Solution

time : 4

Solution steps

Translate the problem into an equation:

54 x + 48 x = 408

Solve for

x, 54 x + 48 x = 408 : x = 4

time : 4

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