Question

A shade of orange paint is made with 5 parts red paint and 15 parts yellow paint.

a) What percent of the paint is red?
b) What is the simplified ratio of yellow to red paint?
PLEASE HELP

Answer 1

(a) 25%

(b) 3:1

Explanation:

A shade of orange paint is made with 5 parts red paint and 15 parts yellow paint.

(a)

Total parts used in making orange paint=(5+15)+20 parts.

Number of parts of red paint used=5

Percent of paint is red=
`(Number of parts of red paint used)/(Total number of parts used)*100`

=
`(5)/(20)*100`

=25%

Hence 25% of red paint was used to make orange paint.

(b)

The simplified ratio of yellow to red paint is:
`(15)/(5)=(3)/(1)`

Hence, the ratio is: 3:1.