SOLUTION: cindy is driving to her grandma's house a distance of 420 miles. She left at 8am driving 65 mph. At noon, she stopped an hour for lunch. What speed should she drive to get to her g
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Question 749736: cindy is driving to her grandma's house a distance of 420 miles. She left at 8am driving 65 mph. At noon, she stopped an hour for lunch. What speed should she drive to get to her grandmas by 5pm? Answer by lenny460(1073) (Show Source):
You can put this solution on YOUR website! Cindy is driving to her grandma's house a distance of 420 miles. She left at 8 am driving 65 mph. At noon, she stopped an hour for lunch. What speed should she drive to get to her grandmas by 5pm ?
Distance to grandma's house is 420 miles.
8 am to noon = 4 hours
65 * 4 = 260 miles
420 - 260 = 160
Cindy stopped for an hour for lunch between noon and 1.00 pm.
5 pm - 1 pm = 4 hours
Therefore:
160 / 4 = 40 miles per hour.
Answer:
40 miles per hour.
Lennox Obuong
Algebra Tutor
Nairobi, Kenya
Email: obuong3@aol.com
