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Starting at the same point, Tom and Juanita go biking in opposite directions. If Tom rides at a speed of 30 mph, and Juanita rides at a speed of 21 mph, how far apart will they be in 3 hours?

Please pick one of the following answers:




A. 163 miles

B. 51 miles

C. 93 miles

D. 153 miles

Respuesta :

Answer:

The answer is D. 153 Miles

Step-by-step explanation:

30 times 3= 90

21 times 3= 63

63 + 90= 153

Answer:

153 miles.

Step-by-step explanation:

Their combined speed is 30 + 21 = 51 mph.

Distance travelled in 3 hours = times * speed

= 3 * 51

=  153 miles.