One afternoon the water park sold 525 tickets for a total of $13,545 . child tickets cost $19 each, and adult tickets cost $40 each. how many of each kind of ticket were sold?

The no of child and adult are 355 and 170 respectively

Step-by-step explanation:

Let the no of tickets for child be x

and the no of tickets for adult be y

Given x+y=525[1]

19x+40y=13545[2]

Multiplying  [1] by 19

19x+19y=9975[3]

Subtracting [3] from [2]

19x+40y-19x -19y= 13545-9975

21y=3570

Dividing both sides by 21

y=170

Putting value of y in [1]

x+170=525

Subtracting 170 both sides

x+170-170= 525-170

x=355

No of child =355

No of adults =170

18

step-by-step explanation:

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perimeter = 10 +  √10  units

explanation:

first, we will need to get the length of each line using the distance formula which is as follows:

distance = 

1- length of ab:

ab =   = 5 units

2- length of ac

length of ac is the same as ab = 5 units

3- length of bc:

bc =   =  √10  units

now, we can get the perimeter by adding the side lengths as follows:

perimeter = 5 + 5 +  √10

perimeter = 10 +  √10  units

hope this : )

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