John and 3 friends are going out for pizza for lunch. They split one pizza and 4 large drinks. The pizza cost $13.00. After using a $6.00 gift certificate, they spend a total of $13.20. Write an equation to model this situation, and find the cost of one large drink. 4d + $13.00 – $6.00 = $13.20; $1.55 4d – $13.00 + $6.00 = $13.20; $6.73 3d + $13.00 – $6.00 = $13.20; $2.07 4d + $13.00 – $6.00 = $13.20; $1.60
Step One : Start with what you know ($13.00-$6.00)
Then make a full equation based on what you need to find out.($7.00+4d)/4=(13.20)/4 Start simplifying. (1.75+d)-1.75=(3.3)-1.75 Continue to simplify for your answer. d=1.55 1.55 is the answer. (A is your answer.) ------------------------- Hoped I helped!
