177k views
3 votes
Find two numbers if their ratio is 9:11 and their difference is 6. not 27 or 33 or -27 or -33

User Foens
by
8.4k points

1 Answer

1 vote

Answer:

-27 and -33.

Explanation:

If the number have 9:11 of ratio, this can be expressed like this:
(x)/(y) =(9)/(11). Because a ratio represents a equivalence between two fractions.

The problem says that their difference is 6, which can be expressed like:
x-y=6

Where x and y are the unknown numbers.

So:
x=6+y; we replace this equation in the ratios one.


(x)/(y) =(9)/(11) \\(6+y)/(y) =(9)/(11) \\66+11y=9y\\66=9y-11y\\66=-2y\\(66)/(-2)=y\\ y= -33.

To calculate the second number we use:
x-y=6\\x=6+y\\x=6+(-33)\\x=6-33\\x=-27

Hence, the two numbers that fit with the 9:11 ratio and their difference of 6 are -33 and -27.

User Tugrul Ates
by
8.2k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories