john is n years old. kim is three years younger than john. vanessa is half kim's age. write an expression for each persons age.
1 answer:
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Answer:
Allen go to bed at <u>9:15 p.m</u>.
Step-by-step explanation:
Given:
Allen started his homework at 8:10 p.M. And worked for 45 minutes. Then he phoned a friend and talked for 20 minutes. He went to bed when he finished the call.
Now, to find the time Allen go to bed.
Allen started his homework at 8:10 p.m.
And worked for 45 minutes.
So, to get the time when he finished homework is by adding 45 minutes and the time when he started homework:
Thus, he finished his homework at 8:55 p.m.
Then he phoned a friend and talked for 20 minutes and went to bed when he finished the call.
<em>As, 1 hour = 60 minutes.</em>
Now, to get the time when he go to bed by adding 20 minutes and the time when he finished homework:
Therefore, Allen go to bed at 9:15 p.m.