Question

The ratio of two numbers is 7 to 5. The sum of the numbers is 24. What are the numbers?
(Points : 4)
12 and 12
14 and 10
21 and 15
18 and 6

Answer 1

say the numbers are x and y
ratio of x to y = ratio of 7 to 5
means
x/y=7/5

and the sum of x and y is 24
means x+y=24

so you have x/y=7/5 and x+y=24

Answer 2

solve the first equation for x by multiplying both sides by y

Answer 3

then sub that into the other equation