John and 4 friends are going out for pizza for lunch. they split one pizza and 5 large drinks. the pizza cost $12.00. after using a $5.00 gift certificate, they spend a total of $14.25. write an equation to model this situation, and find the cost of one large drink.

John + 4 friends is a total of 5 people

5 people = 5 drinks 1 pizza

5 people = 5 drinks + 12$

5people = 5 drinks + 12$ -5$

5 people = drinks + 7$

5 people = 7.25$ for drinks + 7 for pizza

7.25 for 5 drinks = 1.45

1 drink = 1.45

- "runner b is moving at a slower rate."

- "the graphs shown are graphs of distance(km) against time(min).

the slopes of this graphs are are given by:

slope = (change in y)/(change in x)

= (change in distance)/(change in time)

this is the formula for finding the speed. so, the slope of these graphs represent the speed of the runner.

taking each division in the graph to represent 1 on both axis:

runner a ⇒ speed = (2-0)/(1-0)

= 2/1

= 2 km/min

runner b ⇒ speed = (3-0)/(3-0)

= 3/3

= 1 km/min

this shows that   runner b is moving at a slower rate."

chiken

step-by-step explanation: