The expression 15a+12c is the cost of admission at an amusement park for a adults and c chldren. then find the total cost for 5 adults and for 10 children

We are given expression for cost of admission at an amusement park : 15a+12c.

Where a is the number of adults and

c is the number of children.

We need to find the total cost of 5 adults and for 10 children.

In order to find the total cost of 5 adults and for 10 children, we need to plug a=5 and c=10 in 15a+12c expression.

Plugging a=5 and c=10 in 15a+12c expression, we get

15(5) + 12(10) = 75 + 120 = $195.

24/56=hx^7

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

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