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

Respuesta :

I believe it would be 8oz of yellow
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.
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