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Andreas93 [3]
3 years ago
8

To play at bingo night, there is a $10 cover charge plus $2 per bingo card. Write and equation for the cost (y) based on the num

ber of bingo cards (x).
Mathematics
1 answer:
Pani-rosa [81]3 years ago
4 0
I think it is y=10+2x
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Use the substitution method to solve the system of equations. Choose the correct ordered pair.
motikmotik
Ur gonna have to pick an equation and solve for a variable.

2x - 2y = 6
2x = 2y + 6 ...divide everything by 2 because u want x by itself
x = y + 3

now we sub y + 3 in for x in the other equation
14x - 2y = 78
14(y + 3) - 2y = 78...distribute thru the parenthesis
14y + 42 - 2y = 78...subtract 42 from both sides, cancelling the 42 on the left
        -42          -42
-----------------------
14y - 2y = 36 ...simplify
12y = 36...divide by 12 on both sides, cancelling out the 12 on the left
y = 36/12
y = 3

now , we already know that x = y + 3...and we know y = 3...so sub in 3 for y and solve for x
x = y + 3
x = 3 + 3
x = 6

solution is (6,3)

it is always a good idea to check ur answer by subbing it into one or both of the equations to see if it is correct
2x - 2y = 6......(6,3)...x = 6 and y = 3
2(6) - 2(3) = 6
12 - 6 = 6
6 = 6 (correct)

so yes, ur solution is (6,3)
4 0
3 years ago
Read 2 more answers
3x^2+20x+12<br> pls show work ;-;
RoseWind [281]

Answer:

3 {x}^{2}  + 20x + 12 \\ 3 {x}^{2}  + 18x + 2x + 12 \\ 3x(x + 6) + 2(x + 6) \\( 3x + 2)(x + 6)

5 0
2 years ago
5. Does the following table represent a function? Explain.
lys-0071 [83]

Answer:

Yes

Step-by-step explanation:

A function cannot have the same x values but can have the same y values. Because all of the x-values are different, this table represents a function.

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3 years ago
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Answer:

A radical equation is an equation in which a variable is under a radical. To solve a radical equation: Isolate the radical expression involving the variable. If more than one radical expression involves the variable, then isolate one of them.

Step-by-step explanation:

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8 0
3 years ago
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Write the equation of a line that passes through the points
xxTIMURxx [149]
Y=-3x+-1. you subtract (-4)-(-1) =3 and 1-0 and you get 1 . so the slope is 3 over 1 . and the y intercept is -1
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3 years ago
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