Question

Which proportion has a solution of 8?

Answer 1

need the answer choices ?

Answer 2

thirty over twelve equals n over forty-five

twelve over thirty equals n over forty-five

twelve over n equals forty-five over thirty

twelve over thirty equals forty-five over n

Answer 3

let me show you how to solve a proportion...
30/12 = n/45
cross multiply
(12)(n) = (45)(30)
12n = 1350
now divide by 12 to get n by itself
12n/12 = 1350/12
n = 112.5
obviously this is not the correct answer because n does not equal 8.
you want to ry the next answer choice ?

Answer 4

I need the answer in 5 mins

Answer 5

12/30 = n/45
30n = 540
n = 18 (no)

12/n = 45/30
45n = 360
n = 8 (BINGO, it is this one)

Answer 6

thank you sooo much

Answer 7

no problem...do you understand how I did these ?

Answer 8

sorta

Answer 9

cross multiply, then solve for the variable

Answer 10

oh ok thank you is there some way you can like help me more often

Answer 11

when I am on, you can just tag me....as long as it is not geometry I am not good at that

Answer 12

ok thanks

Answer 13

no problem :)