if \(\frac{4m+3n}{4m-3n}=\frac{5}{2}\), find the ratio m:n

Ubajaka

10 years ago

Here is an explanation:

5(4m-3n)=2(4m+3n)

20m-15n=8m+6n

20m-8m=15n+6n

12m=21n

4m=7n

SHEGZZ

11 years ago

4m+3n/4m-3n=5/2(cross multiply)---8m+6n=20m-15n(collect lyk terms)---6n+15n=20m-8m---21n=12m...since we ar 2find ratio of m:n---12m/21n=4/7...ans is "D"

cleverboy001

4 months ago

incorrect answer

Ubajaka

10 years ago

This is the correct solution

damcul

10 years ago

Abeg ooo, correct am it is D

Myschool Kelly

10 years ago

Correction has been made. Thanks for your contributions.

LeLay

1 year ago

in this question they asked m: n and m:n is 4:7 and not 7:4

mikel1406

8 months ago

Please my MYSCHOOL.NG the answer has not yet been changed to D. Please Sir Kelly please help us correct. You said you correct the answer about 9yrs ago but its still the same.

Micahbright

11 years ago

Please, the question is 'ratio of m : n not otherwise. That leaves us with the answer... 4:7. Solve it anyhow but m first b4 n.

adu adeyinka

11 years ago

sheggs i agree with u jare

llukebelmar

8 months ago

m is 12 not 21 which is n

Gorgewill

1 year ago

A is the correct option

Chimemeria

9 years ago

my school...U guys r confused....the answer is option A not D