2 years ago

PMark for Review

Mathematics

1 answer:

SVEN [57.7K]2 years ago

7 0

Answer:

Y = 6

Step-by-step explanation:

On the first day of ticket sales the school sold 3 adult ticket and 8 student tickets for a total of $72. The school took in $152 on the second day by selling 7 adult tickets and 16 student tickets. How much is a student ticket?

Day 1: 3x + 7y = 72

Day 2: 7x + 16y = 152

This becomes a system of equations.

3x+8y=72

3x+8y+−8y=72+−8y (Add -8y to both sides)

3x=−8y+72

3x/3 = −(8y+72)/3

X = (-8/3) y + 24

Substitute (-8/3) y + 24 for x in7x+16y=152:

7(-8/3 y + 24) + 16y = 152

-8/3 y + 168 = 152 (Simplify both sides of the equation)

-8/3 y + 168 − 168 = 152 + (−168) (Add -168 to both sides)

-8/3 y = -16

(-8/3 y)/(-8/3 y) = -16/ -8/3 y (Divide both sides by (-8)/3)

y = 6

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RSB [31]

Isolate the variable by dividing each side by factors that don't contain the variable.

x= 13/4 - y/4

If you are solving for x (only)
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6 0

3 years ago

The ending bank statement balance at November 30 is $7,070. The bank statement shows a service charge of $95, electronic funds

maks197457 [2]

Answer:

The adjusted book balance at November 30 is $7285.

Step-by-step explanation:

The Adjusted book balance at November 30 =

Ending bank statement balance + Deposits in transit - outstanding checks

7,070+2,050-1,835 = 7285

8 0

3 years ago