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6. For his history exam tomorrow, Zachary
has studied for 2 hours and 40 minutes. This is 10
minutes more than twice the amount of time he spent
studying for his last exam. How many more minutes
did Zachary study for his history exam than his last
exam?
Please help!!!

Respuesta :

texaschic101

Answer:

75 minutes or 1 hr and 15 minutes

Step-by-step explanation:

for history, he studied 2 hrs and 40 minutes....thats a total of 160 minutes

this is 10 minutes more then twice the time he spent on his last exam.

let x represent the time spent on last exam

160 = 2x + 10

160 - 10 = 2x

150 = 2x

150/2 = x

75 = x.......so he spent 75 minutes (or 1 hr and 15 minutes) on his last exam

amandamarogen57

Answer:

I think Zachary studied for 80 more minutes for his history exam than he did with his last exam.

Step-by-step explanation:

2 hr and 40 min = 120+40= 160.

160 / 2 = 80.

This might be wrong also. Not very good with story problems.

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