Lisa mixes 3 units of red paint with 8 units of white paint to get pink. How many units of red paint should she mix with 12 units of white paint to get the same pink shade

Answer: Lisa should mix 4.5 units of red paint with 12 u its of white paint.

Step-by-step explanation:

Lisa mixes 3 units of red paint with 8 units of white paint to get pink. This means that the ratio of red paint to white paint is 3/8.

Let x represent the number of units of red paint that she should mix with 12 units of white paint to get the same pink shade. Therefore

3/8 = x/12

Cross multiplying, it becomes

8 * x = 3 * 12

8x = 36

x = 36/8 = 4.5