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What is X in the following equation: 100(19/X)=121 ?

2006-11-06 13:15:06 · 12 answers · asked by lizzy365 1 in Science & Mathematics Mathematics

12 answers

100(19/x) = 121
Multiply 100 by 19
1900/x = 121
Multiply both sides by x
1900 = 121x
Divide both sides by 121
1900/121 = x
Answer: x = 1900/121

2006-11-06 13:17:16 · answer #1 · answered by MsMath 7 · 2 2

First multiply 100 * 19:
100 * 19/x = 121
1900 / x = 121

Now multiply both sides by x (to get it out of the denominator):
1900 = 121 x

Now divide both sides by 121:
x = 1900 / 121

And solve:
x ≈ 15.7024793

If this is similar ratios, then 121 to 100 equals 19 to 15.7025... or if this is a percentage increase, then a price of $15.70 will increase by 21% to become $19.00

2006-11-06 13:17:35 · answer #2 · answered by Puzzling 7 · 3 2

100(19/x) = 121
1900/x = 121
1900 = 121x
1900/121 = x
x = 1900/121 ~

2006-11-08 04:06:09 · answer #3 · answered by Anonymous · 0 2

100(19/X) =121

so (dividing both sides by 100)

19/X = 121/100

so 19/X =1.21

so (multiplying both sides by X)

19= 1.21X

so X=15.7

2006-11-06 13:21:55 · answer #4 · answered by Anonymous · 0 1

15.702479338842975206611570247934

(100(19/X))/100=121/100
(19/X)x X= 1.21 x X
19 = 1,21X
X=15.702479338842975206611570247934

2006-11-06 13:25:27 · answer #5 · answered by Scarp 3 · 0 1

100*19=1900 100*x=100x, 1900/100x=19x, 19x=121 divide 19/19=121/19 x=6.4

2006-11-06 13:22:16 · answer #6 · answered by Anonymous · 0 1

19 / x = 121 / 100

1900 = 121x

x = 15.7

2006-11-06 13:20:01 · answer #7 · answered by pakachuchu 2 · 0 1

11+(one million/x-2)=33 beginning up equation 11+(x-2)=33 in case you have been to divide via one million the respond remains the comparable 11+x-2=33 with the aid of fact 2 does not bypass into x we distribute the plus sign which drops the parenthesis 9+x=33 it is user-friendly purely start to simplify 11-2=9 x=24 you subtract 9 from the two aspects after which you have x=24 now thats your answer

2016-10-03 08:53:36 · answer #8 · answered by ? 4 · 0 0

19.somesmallinsigificantnumber
19 + 21% of 19.

2006-11-06 13:18:19 · answer #9 · answered by Cameron L 3 · 0 1

divide 121 by 100
you get 19/x=1.21
multiply 1.21 by 19
and you get x=0.063684211
the decimal may be longer but i check it on my calculater and it checks
if you folow those directions on your own calculator youll get the same

2006-11-06 13:32:41 · answer #10 · answered by Anonymous · 0 1

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