3 years ago

What is the value of the expression

Mathematics

1 answer:

Nookie1986 [14]3 years ago

5 0

Answer:

D 3.5

Step-by-step explanation:

Replace values in the equation with values given. Calculate.

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The school that Michael goes to is selling tickets to a dance. On the first day of ticket sales the school sold 3 staff tickets

Minchanka [31]

The price of a staff ticket and the price of a student ticket is $8 and $14

Given:

Day 1:

Number of staff tickets sold = 3

Number of students tickets sold = 1

Total revenue day 1 = $38

Day 2:

Number of staff tickets sold = 3

Number of students tickets sold = 2

Total revenue day 2 = $52

let

cost of staff tickets = x

cost of students tickets = y

The equation:

3x + y = 38 (1)

3x + y = 38 (1)3x + 2y = 52 (2)

subtract (1) from (2)

2y - y = 52 - 38

y = 14

substitute y = 14 into (1)

3x + y = 38 (1)

3x + 14 = 38

3x = 38 - 14

3x = 24

x = 24/3

x = 8

Therefore,

cost of staff tickets = x

= $8

cost of students tickets = y

= $14

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Check the picture below.

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Answer:

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The answer would be if you were solving for y. Y= 1/2x+3/8

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