SOLUTION: A car and a truck leave a highway rest area at the same time. The car travels south at 55 km/h and the truck
travels north at 40 km/h. After how many minutes will they be 38 km ap
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-> SOLUTION: A car and a truck leave a highway rest area at the same time. The car travels south at 55 km/h and the truck
travels north at 40 km/h. After how many minutes will they be 38 km ap
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Question 1168906: A car and a truck leave a highway rest area at the same time. The car travels south at 55 km/h and the truck
travels north at 40 km/h. After how many minutes will they be 38 km apart?
CAN YOU ALSO PLEASE USE THE GUESS METHOD. I NEED IT IN ORDER TO COMPLETE MY HOMEWORK
THANK YOU Answer by ikleyn(52797) (Show Source):
They move in opposite direction --- therefore, their separating speed is the sum 55 + 40 = 95 km/h.
The distance of 38 km is of 95 kilometers.
Therefore, the time spent to get separated at 38 kilometers is of an hour, which is 24 minutes. ANSWER
Solved.
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It is the "GUESSING" method, or mental reasoning.
Regarding the algebra method, I solved this problem for you at this forum several days ago.
