Question

Kayson mixes 300 milliliterss of spinach, 200 mL of berries, and 42 mL of dressing to make a salad. There are sss milligrams of vitamin C 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?

Answer 1

300s+200b+42d and 200b+(300s+42d)

Explanation:

On Khan Academy it asks you to pick two answers

Answer 2

Let T be total number of milligrams of vitamin C in our salad.

We have been given that there are s milligrams of vitamin C per milliliter of spinach, B mg per milliliter of berries, and D mg per milliliter of dressing.

Let us find how much mg of vitamin C our each ingredient of salad will have.

We have been given that a salad contains 300 milliliters of spinach, 200 ml of berries, and 42 ml of dressing.

`\text{Mg vitamin C in 300 ml spinach}=300\cdot\text{s mg}`

`\text{Mg vitamin C in 200 ml berries}=200\cdot\text{B mg}`

`\text{Mg vitamin C in 42 ml dressing}=42\cdot\text{D mg}`

To find total milligrams of vitamin C in our salad we will add milligrams of vitamin C in each of three ingredients of salad.

`T=(300s+200B+42D)\text{ mg}`

Therefore, our desired expression will be
`T=(300s+200B+42D)\text{ mg}`.