Which expression is equivalent to −10+(−40)+(−90) ?

Mathematics

3 answers:

Igoryamba3 years ago

8 0

The answer is D because -10+(-40)+(-90) is the same just swiched

nasty-shy [4]3 years ago

3 0

Hey!

Hope this helps...

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To answer this we will have to use a bit of the distribution property, but first we need to know the answer of the thing we are comparing...

−10+(−40)+(−90) > -10 - 40 - 90 = -140

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A.) −(10−40)+(−90) > -10 + 40 - 90 = -60

Does -60 equal -140?

B.) −10−(40−90) > -10 - 40 + 90 = 40

Does 50 equal -140?

C.) 10+40+90 = 140

Does 140 equal -140?

D.) −10+(−90)+(−40) > -10 - 90 - 40 = -140

Does -140 equal -140?

YES

So...

The answer is: D.) -10+(-90)+(-40)

cool9x2 years ago

0 0

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defon

Let x be the number of pens in a box.

Jill : three full boxes of pen and 2 loose pens. 3x + 2
Ben: two full boxes of pen and 14 loose pens. 2x + 14

Jill and Ben have the same pens.
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To check:
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