Question

Kayson mixes 300 mL of spinach, 200 mL of berries, and 42 mL of dressing to make a salad. There are s milligrams per milliliter of spinach, b mg per milliliter of berries, and d mg per milliliter of dressing. Which expressions can we use to describe how many milligrams of vitamin C are in the salad?

A) 300s+200b+42d

B) s+b+d

C) 300/s+200/b+42/d

D) 300s×200b×42d

Answer 1

The expression that can be used to describe how many milligrams of vitamin C are in the salad is 300s+200b+42d (option A). This expression calculates the total amount of vitamin C by multiplying the volume of each ingredient (in milliliters) by the concentration of vitamin C in each ingredient (in milligrams per milliliter) and summing them up.

Step-by-step explanation:

The expression that can be used to describe how many milligrams of vitamin C are in the salad is 300s+200b+42d (option A). This expression calculates the total amount of vitamin C by multiplying the volume of each ingredient (in milliliters) by the concentration of vitamin C in each ingredient (in milligrams per milliliter) and summing them up.

For example, if the concentration of vitamin C in spinach is 2 mg/mL, the concentration in berries is 3 mg/mL, and the concentration in dressing is 1 mg/mL, the expression becomes 300*2+200*3+42*1, which gives us the total amount of vitamin C in milligrams.