Question

sheila mixed 3 oz of blue paint wih 2 oz of yellow paint she decided to create 20 oz of he same mixture how many oz of yello paint does sheila need for hwr new mixture? solve by using proportion

Answer 1

I believe it would be 8oz of yellow

Answer 2

3 + 2 = 5  
Sheila has 5 oz after she mix the blue and yellow paint. 
20 - 5 to get the amount of paint she still needs.
She needs 15 oz of yellow paint.