Mr. Reilly spent $90 on tickets to the aquarium. Write an equation in standard form to represent the situation

Complete question :

Admission rate at local aquarium :

Ticket Price

Children $9

Adult $15

Mr.Reilly spent $90 on tickets to the aquarium. Write an equation in standard form to represent the situation

y = 6 - (9/15)x

Step-by-step explanation:

The amount spent = [(rate of children ticket * number of children ticket obtained) * rate of adult ticket * number of adult ticket purchases)]

Let :

number of chikdren ticket = x

Number of adult ticket = y

(15 * y) + (9 * x) = 90

15y + 9x = 90

15y = 90 - 9x

Divide through by 15

y = 6 - (9/15)x

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3

- "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."