120/56 = 105/x
please explain the formula to figure this out.
2007-09-22 03:12:25 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
120/56=105/x
or,120*x=105*56
or x=105*56/120=49
2007-09-22 03:18:46 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
Cross multiply. Numerator on left side times denominator on right side = numerator on right times denominator on the left.
So. 120*x = 105*56.
Solve for x: x = 105*56/120 = 49
2007-09-22 03:18:04 · answer #2 · answered by Ludwig H 2 · 0⤊ 0⤋
First make upsite down with both sides we get
56 / 120 = x / 105
Then multiply both sides with 105 to get
[ 56 * 105 ] / 120 = x
x= 49
That is the answer for question
2007-09-22 03:19:30 · answer #3 · answered by Rayan Ghazi Ahmed 4 · 0⤊ 0⤋
First you have to cross multiply 105 and 56 and you should get 5880 then you have to divide it by 120 and you should get 49 so X=49
2007-09-22 03:17:02 · answer #4 · answered by Anonymous · 0⤊ 0⤋
120 / 56 = 30 / 14 = 15 / 7
15 / 7 = 105 / x
3 / 7 = 21 / x
3 x = 147
x = 49
2007-09-23 20:48:48 · answer #5 · answered by Como 7 · 0⤊ 0⤋
you have a proportion so you're going to cross multiply to get x.
120 105
---- = ----
56 x
56 * 105 = 120 * x
5880 = 120x
5880/120=x
49=x
2007-09-22 03:42:34 · answer #6 · answered by Anonymous · 0⤊ 0⤋
120/56:105/x is the ames as120x=5880, where x= 49[ans]
2007-09-22 03:17:44 · answer #7 · answered by WC 7 · 0⤊ 0⤋
hey just do cross multiplication
then
120x=105*56
x=105*56/120
2007-09-22 03:16:31 · answer #8 · answered by Ashwin 2 · 0⤊ 0⤋
I am not sure, you can use a caculater just figuer out what 120/56=? and then make x the number to get to that value.
2007-09-22 03:16:52 · answer #9 · answered by scott 4 · 0⤊ 0⤋
what value of x makes the proportion true x/35=3/7
2014-03-08 09:17:38 · answer #10 · answered by Jennifer 1 · 0⤊ 0⤋