Question

The ratio of two numbers is 5 to 3. The sum of the numbers is 16. What are the numbers?

8 and 8
9 and 7
15 and 9
10 and 6

Answer 1

let x and y be the two numbers
ratio of x to y = x/y = 5/3
sum of the numbers: x + y = 16

do you know what do do next?

Answer 2

is it the first 1

Answer 3

nope, remember that the ratio is 5 to 3, which means that the first number divided by the second number must be 5/3

Answer 4

the third?

Answer 5

no, please don't try to guess, I would like you solve the problem mathematically

Answer 6

no, here's a hint:

8/8 = ?
9/7 = ?
15/9 = ?
10/6 = ?

make sure to simplify fractions

Answer 7

10 & 6

Answer 8

10/6 = (2•5)/(2•3)