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 27 mph, how far apart will they be in 3 hours?
A.
181 miles
B.
111 miles
C.
171 miles
D.
57 miles

Respuesta :

Answer: C

Explanation:

  • If Tom goes at 30 mph, he will be 90 miles away from the starting point after three hours.
  • If Juanita goes at 27 mph, she will be 81 miles away from the starting point after three hours.
  • 81 + 90 = 171
  • They will be 171 miles apart after three hours.
The answer is C. 171. You multiply 30 by 3 to get 90 and then multiply 27 by 3 to get 81. Then you add 81 and 90 to get 171. Hope this helps!