“all you can eat tuesdays” at a local café offers a full salad bar that costs $10 for children and $15 for adults. last tuesday, the café had total revenue of $180. which equation expresses this real-world situation if x represents the number of children and y represents the number of adults?

10x + 15y = 180

Step-by-step explanation:

hope i helped 3 days later lol srry

10x + 15y = 180

Step-by-step explanation:

- "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."