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Mathematics 11 Online
OpenStudy (anonymous):

Evaluate. 3x1.5-2.5 --------- 4(8.62-6.37)

OpenStudy (sloppycanada):

To evaluate something, it wants you to solve it. So - 3 x 1.5 -2.5 First step - do the multiplication - 3 x 1.5?

OpenStudy (anonymous):

it equals 4.5

OpenStudy (sloppycanada):

Great! Now subtract 2.5. Should give you 2, correct?

OpenStudy (anonymous):

yes

OpenStudy (sloppycanada):

Now that we'v got the first section all squared away, we can work on the second part. Always do the part in the ( ) first.

OpenStudy (anonymous):

ok

OpenStudy (sloppycanada):

So. 8.62 - 6.37 = ?

OpenStudy (anonymous):

it is 2.25

OpenStudy (sloppycanada):

Now multiply that by 4, you get 9.

OpenStudy (anonymous):

yes

OpenStudy (sloppycanada):

Which means we're looking at 2/9

OpenStudy (anonymous):

so 2 divided by 9 equals4.5

OpenStudy (sloppycanada):

No. We're looking at the fraction 2/9. We do not divide 9 by 2.

OpenStudy (anonymous):

ok thank you

OpenStudy (sloppycanada):

Do we have to put that in decimal form?

OpenStudy (anonymous):

no but thanks for offering

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