John and 3 friends are going out for pizza. they split one pizza and 4 large drinks. the pizza cost $11.50. they spend a total of 16.90. find the cost of the one large drink.

What we do first is subtract 11.50 from 16.90.

16.90 - 11.50 = 5.4.

If you wanna find the amount for each drink separately, divide 5.4 by 4.

5.4 / 4 = 1.35.

$1.68

Step-by-step explanation: First you subtract 16.90 by 11.50 which gives you  $5.04 Next, you divide $5.04 by the amount of friends there are (3) Then that gives you the total of $1.68 total cost for drinks.

step-by-step explanation:

x = 3 ± √(5+y)