Question

carol spends 1/2 hour doing mathe homeworck, 4/5 hour doing science homeworck, and 1/4 hour doing history homworck. About how much time did she spend in all doing her homeworck?

A. about 1 hours
B. about 1 1/2 hours
C. about 2 hours
D. about 2 1/2 hours

Answer 1

Hi! So basically you have to take 60 and divide it by 5 which equates to 12. So then you take 12 and multiply it by 4 which is 48. So if you add 30 and 48 it is 78 minutes. From here we can subtract 60 from from 78 in which you would get 18.
Therefore an hour and 18 minutes to be precise haha
but because we have to round, what would the answer be?

Answer 2

so is d? ritgth?

Answer 3

Well notice, the exact answer is 1 hour and 18 mins. so We would round tooooo what?

Answer 4

is the answer c thean

Answer 5

Nice try!!! The answer is actually B because we have an 1 hour and 18 mins. rounding to 1 hour and 30 mins thus 1 1/2 hours :)
Hope that helps! Feel free to click the Best Response button next to my answer :)

Answer 6

ok thinck for the help :)

Answer 7

Ofc! Anytime :)