Question

in samantha's garden, the ratio of sunflowers to marigolds is 4:5. If Samantha has 45 flowers total in her garden, how many sunflowers does she have?

Answer 1

`20\ sunflowers`

Explanation:

Let

x----> the number of sunflowers

y----> the number of marigolds

we know that

`(x)/(y)=(4)/(5)`

`y=(5)/(4)x` ----> equation A

`x+y=45` ----> equation B

substitute equation A in equation B and solve for x

`x+(5)/(4)x=45`

`(9)/(4)x=45`

`x=45*4/9=20\ sunflowers`