Question

Sammy has a recipe that needs 3/4 teaspoon of salt for every 2 cups of flour. if Sammy increases the amount of flour to 5 cups of flour, how many teaspoons of salt are needed? explain

Answer 1

`\text{Sammy has a recipe that needs 3/4 teaspoon of salt for every 2 cups of flour.}\\ \text{we nee to find the number of teaspoons of salt needed if Sammy increases}\\ \text{the amount of flour to 5 cups.}\\ \text{so we use the proportion for that.}\\ \\ \text{for 2 cups of flour, the amount of salt needed}=(3)/(4) \text{ teaspoons}\\ \\ \text{so for 1 cup of flour, the amount of salt needed}=((3/4))/(2)=(3)/(8) \text{ teaspoons}`

`\text{Therefore for 5 cups of flour, the amount of salt needed} =(3)/(8)* 5\\ \\ =(15)/(8) \text{ teaspoon}`

Hence, Sammy will have to increase the salt to 15/8 teaspoons.