After 10 minutes, he's 40 miles away. After 22 minute, he's 34 miles away. Therefore, in those 12 minutes between, he covered 6 miles. We can make a ratio out of this: 6/12 = 0.5, so he is walking at a rate of 0.5 mi/min (miles per minute). Finally, we can set x/90 equal to 0.5/1 because he is walking at the same rate the entire time. Cross multiply to solve for x. Finally, you get that he had to travel 45 miles in 90 minutes, so his home is 45 miles away from his grandmother's.
6 is the least common denominator
Answer:
C
Step-by-step explanation:
I can help you did you ask Siri?
Just take a picture on Siri the would lead you to the answer.
Step-by-step explanation:
I hope that helps please give me Brainliest