Mathematics: Judy needs a mean (average) score of 86 on four tests to earn a midterm grade of B. If the mean of her scores for the first three tests was 83, what is the lowest score on a 100-point scale that she can receive on the fourth test to have a midterm grade of B?

Judy needs a mean (average) score of 86 on four

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11.05.2020

a) $x=\dfrac{\text{Total amount}}{\text{Number of tickets}}\\\\x=\dfrac{930.75}{25}$

b) $37.23

Step-by-step explanation:

Since we have given that

Total amount raised by a theatre company = $930.75

Number of floor seat tickets = 25

We need to find the equation with a variable that can be solved to correctly find the price of each ticket.

Let the price of each ticket be 'x'.

so, Part A becomes,

$x=\dfrac{\text{Total amount}}{\text{Number of tickets}}\\\\x=\dfrac{930.75}{25}$

Part B:

Value of x be

$x=\dfrac{930.75}{25}=\$37.23$

Hence, a) $x=\dfrac{\text{Total amount}}{\text{Number of tickets}}\\\\x=\dfrac{930.75}{25}$

b) $37.23

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