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lakkis [162]
2 years ago
7

Systems with three variables. please help

Mathematics
1 answer:
kirza4 [7]2 years ago
3 0
X= 6
Y= 0
Z= -2

CHECK
3x + y -2z =22
3(6) + 0 -2(-2) =22
18 + 0 +4= 22
22=22

x+5y+z =4
6 +5(0)+ -2 =4
6 + 0 +-2 = 4
4=4

x+3z=0
6 + 3(-2) =0
6 -6 = 0
0=0
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Answer: Joe has initial amount of $12 ( when he played no game).

Step-by-step explanation:

Given: Joe took $12 to the arcade. Each game cost $.50 to play.

This situation can be modeled with the equation y =-0.50 x+ 12.

Here,

Money Joe has remaining is repreesnted by 'y', and the number of games he plays is represented by 'x'.

Since y-intercept gives the initial value of the function when x=0.

To find y-intercept , we out x=0 in funtion , we get

y=-0.50(0)+12=12

So , y-intercept of this function is at y=12.

Meaning of the y-intercept in the terms of this problem :

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Zanzabum

Answer:

Step-by-step explanation:

C = 59.4

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<span>Problem: 3(x-5)-15=48

1. Multiply what's in the parenthesis
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2. Combine like terms
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Answer:

20:25

Step-by-step explanation:

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