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Popular Word Problems >

Chicago, Illinois and Detroit, Michigan are 284 miles apart. If a driver averaged 70 miles per hour, how long would it take him to get from Chicago to Detroit?

Solution

C hi c a g o, I ll in o i s an d De t ro i t, M i c hi g an a re 284 mi l es a p a r t . I f a d r i v er a v er a g e d 70 mi l es p er h o u r, h o w l o n g w o u l d i t t ak e him t o g e t f ro m C hi c a g o t o De t ro i t ?

Solution

time : 4 \frac{2}{35}

Solution steps

Translate the problem into an equation:

70 x = 284

Solve for

x, 70 x = 284 : x = \frac{142}{35}

Convert improper fractions to mixed numbers

time : 4 \frac{2}{35}

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