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Mathematics 13 Online
OpenStudy (anonymous):

2/3n=10

OpenStudy (anonymous):

n=15

OpenStudy (anonymous):

cross multiply, 2/3n=10/1 30n=2 n=15

OpenStudy (amistre64):

cross multiply?

OpenStudy (amistre64):

sounds foil-ish to me, and pedmasical too

OpenStudy (anonymous):

2(1)=10(3)

OpenStudy (oaktree):

No, that's all wrong. n=1/15

OpenStudy (amistre64):

id divide both sides by 10, and make n the reciprocal

OpenStudy (anonymous):

thank you that helped a lot!

OpenStudy (oaktree):

The correct answer is n=1/15.

OpenStudy (amistre64):

2 --- n = 10 3 2 --- n = 1 30 n = 30/2 = 15

OpenStudy (oaktree):

Multiply both sides by 3n, and then you have 30n=2. Then divide by 30 on both sides, and you have n=2/30, or 1/15.

OpenStudy (anonymous):

its not 1/15, you multiply 3n by the numerator which is 10

OpenStudy (oaktree):

Check my answer, then! 2/3(1/15)=2/(3/15)=2(15)/3=30/3=10. I tell you, I'm right!!

OpenStudy (oaktree):

15, however, works out to 3/45, which is by no way 10.

OpenStudy (oaktree):

Beat that.

OpenStudy (anonymous):

ok, 2/3 times (1/15)=1/45 2/3 times 15=10

OpenStudy (oaktree):

No, it isn't 2/3 times (1/15), it is (2/3) times (1/(1/15)). The 1/15 is in the denominator!

OpenStudy (oaktree):

amk11, you have to admit that I'm right.

OpenStudy (anonymous):

u r not multiplying the reciprocal

OpenStudy (oaktree):

Yes, I am!!! Stop being stubborn!

OpenStudy (anonymous):

lol :p

OpenStudy (anonymous):

i still think its 15, i even checked the calculator nd it says im right

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