find the number if the ratio between them is 9:5 and their difference is 36
2006-07-09 05:28:42 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The two numbers are 81 and 45
2006-07-09 05:35:25 · answer #1 · answered by Anonymous · 0⤊ 0⤋
If the ratio is 9:5 then the difference between them is 4.However the question states that the difference between them is 36 which is 9 times that. So we must multiply the numbers in the ratio by 9 which gives:-
9 x 9 = 81 and,
5 x 9 = 45.
So the ratio is 81:45
2006-07-09 07:13:15 · answer #2 · answered by brainyandy 6 · 0⤊ 0⤋
State the information as equations:
x/y = 9/5
x - y = 36
Solve the second equation for x
x = y + 36
Replace x in the first equation:
(y + 36)/y = 9/5
Multiply both sides by 5y to clear fractions:
5(y + 36) = 9y
5y + 180 = 9y
180 = 4y
45 = y
Substitute in second equation:
x - 45 = 36
x = 81
So x = 81, y = 45
Check - their ratio is 81/45 or 9/5 and their difference is 81 - 45 or 36
2006-07-09 06:33:59 · answer #3 · answered by Anonymous · 0⤊ 0⤋
81:45
2006-07-09 08:30:15 · answer #4 · answered by Texan Pete 3 · 0⤊ 0⤋
81 and 45.
2006-07-09 05:37:10 · answer #5 · answered by Anonymous · 0⤊ 0⤋
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2016-12-14 05:54:53 · answer #6 · answered by ? 3 · 0⤊ 0⤋
im sorry but i realy hate numbers
2006-07-09 05:31:37 · answer #7 · answered by ryo 1 · 0⤊ 0⤋
The answer is Q.
2006-07-09 06:32:34 · answer #8 · answered by agfreak90 4 · 0⤊ 0⤋
6529
2006-07-09 05:32:41 · answer #9 · answered by Anonymous · 0⤊ 0⤋
do your own homework, ha ha ha
2006-07-09 05:32:02 · answer #10 · answered by Anonymous · 0⤊ 0⤋