Mixing 4 ml of red paint and 15 ml of yellow paint makes orange paint. How much red paint would be needed if you use 100 ml of yellow paint?
Please show your work.
Answer (2)
15 m l 4 m l = 100 m l x m l cross m u lt i pl y 15 x = 4 × 100 15 x = 400 ∣ d i v i d e b o t h s i d es b y 15 x = 15 400 ∣ d i v i d e a n u m er a t or an d a d e n o mina t or b y 5 x = 3 80 x = 26 3 2 ( m l ) A n s w er : 26 3 2 m l o f re d p ain t .
To mix 100 ml of yellow paint, you will need about 26.67 ml of red paint, based on the original ratio of 4 ml of red to 15 ml of yellow. This is calculated using a proportion. The final answer is shown in the fraction form of 26 2/3 ml.
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