An 8oz glass of skim milk has 90 calories. if your child drinks 28oz of milk in a day, how many calories have they consumed?

W e can use proportions for this question because it is directly proportional- when amount of milk increases, so does calories.

If x is equal to the amount of calories your child drank,

8 oz = 90 cal

28 oz = x cal

Cross multiply.

8x= 28*90

8x = 2520

Divide both sides by 8 to isolate the x

x = 315 cal

You child consumed 315 cal.

Overbearing mother checking how many calories your child drank- the question is hilarious. But proportions are cool.

what does x eaqual

step-by-step explanation:

x² + 3x + 7 = 0       [ax² + bx + c]

a = 1

b = 3

c = 7

quadratic formula:

    (+/- is this ±)

plug in the numbers into the variables

your answer is a