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DENIUS [597]
3 years ago
5

How do you do this question I don’t understand

Mathematics
1 answer:
ValentinkaMS [17]3 years ago
4 0
This is the answer, hope this helps you

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A new online store charges all customers one price to download any song and another price to download any game. Jenna paid $20.5
OLga [1]
X songs
Y games

A) 8X + 3Y = 20.50
B) 4X + 5Y = 22.50

Multiplying equation B) by -2
B) -8X -10Y = -45.00  then adding this to
A) 8X + 3Y = 20.50  we get
-7Y = -24.50
Y = 3.50

I think you can calculate X right?


8 0
3 years ago
5x - (x-2)>2x-4(x-8)
Bad White [126]
X>5. i am 100% sure that this is your correct answer. hope this helps ya.
6 0
3 years ago
What is the solution to system of equation
Alenkinab [10]

The lines are intersected at point (0, -5). So (0, -5) is the solution.

Answer is the third one

(0,-5 )

5 0
3 years ago
I can't figure it out. <br>2x+2y=2<br>-4x+4y=12<br>​
koban [17]

Answer:

how to solve 2x+2y=2 , -4x+4y=12

this is  solving equations using substitution .... i have ALOT more but i juss dnt get this stuff

2x + 2y = 2      -4x + 4y = 12

x + y = 1

x = 1 - y

-4x + 4y = 12

-4(1 - y) + 4y = 12

(-4 + 4y) + 4y = 12

-4 + 8y = 12

8y = 16

y = 2

2x + 2y = 2

2x + 2(2) = 2

2x + 4 = 2

2x = -2

x = -1

Check.

-4x + 4y = 12

-4(-1) + 4(2) = 12

4 + 8 = 12

Answer: x = -1 and y = 2

Step-by-step explanation:

6 0
2 years ago
Simplify the following expression.<br> 5 [13 + 10 = (3 + 2)] + 9 x 2
Sergio [31]

Answer:

i BELIEVE ITS

Step-by-step explanation:

5 [13 + 10 = (3 + 2)] + 9 x 2

65+50=25+18

115=43

7 0
3 years ago
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