Question

What is the value of the expression?

http://static.k12.com/bank_packages/files/media/mathml_4082c2569ad609272f773ce9ed06e069b62db51d_1.gif

A.http://static.k12.com/bank_packages/files/media/mathml_47a9da634e2a89fb9e48838dd5ffe3271375ee89_1.gif


B.http://static.k12.com/bank_packages/files/media/mathml_413a5c20b46b8c3bb9b99c725088ff0c95b3973d_1.gif


C.http://static.k12.com/bank_packages/files/media/mathml_56f1551dcef71dff45653bd7fd620521a623bb20_1.gif


D.http://static.k12.com/bank_packages/files/media/mathml_0d18932a941d34b9af3a508faacae2bdbaaa2964_1.gif

Answer 1

@JTDugas

Answer 2

The least common denominator is 70, so -2/5(14) - -3/7(10) * 7/10(7)
(-28/70) - (30/70) * (49/70)

Answer 3

(-28/70) - (30/70)= -58/70

Answer 4

-58/70* 7/10
multiply across to get -406/700

Answer 5

Should I Simlify -406/700
?

Answer 6

Yes

Answer 7

-29/50

Answer 8

that can be simplified further

Answer 9

You might be right, I guess I suck at math :c

Answer 10

Well -29/50 Are none of the choices.. :p

Answer 11

Orders of operations LOL

Answer 12

You have to multiply first

Answer 13

I got this

Answer 14

multiply what? by what ~facepalm~

Answer 15

3/7*7/10= 21/70

Answer 16

-28/70-21/70

Answer 17

3/10

Answer 18

-49/70

Answer 19

-7/10

Answer 20

-7/10

Answer 21

final answer xD

Answer 22

http://static.k12.com/bank_packages/files/media/mathml_47a9da634e2a89fb9e48838dd5ffe3271375ee89_1.gif

Answer 23

Thanks xD I think I have 1 more.