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Mathematics 6 Online
OpenStudy (shadowcain):

Valerie used to spend 10 h/wk watching TV. Now she spends 1/4 less time per week watching TV. Which expressions represent how many hours per week Valerie spends watching TV now? Choose all answers that are correct. A. 10 - (1/4 x 10) B. 10 + (1/4 x 10) C. 3/4 x 10 D. 1/4 x 10

OpenStudy (welshfella):

the important phrase here is ' 1/4 LESS time per week'. That is its not 1/4 of the original time but the original time - 1/4 of original time.

OpenStudy (welshfella):

Do you follow the argument?

OpenStudy (shadowcain):

I get that part, I just get confused on the expressions

OpenStudy (welshfella):

2 of them are correct

OpenStudy (welshfella):

in algebra 'of' = 'x'

OpenStudy (welshfella):

of = times

OpenStudy (shadowcain):

Is D one of them?

OpenStudy (welshfella):

No

OpenStudy (welshfella):

D means a 1/4 of the original time (10)

OpenStudy (welshfella):

its 1/4 LESS than 10 'LESS' = '-'

OpenStudy (shadowcain):

So, it's A and C

OpenStudy (welshfella):

you got it

OpenStudy (shadowcain):

Cool.... Thanks

OpenStudy (welshfella):

yw

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