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Veronika [31]
3 years ago
13

A new online store charges all customers one price to download any song and another price to download any game. Jenna paid $20.5

0 to download eight songs and three games, and Dwayne paid $22.50 to download four songs and five games. How much does the store charge to download each song and game?
Write a system of linear equations based on the description. Use x to represent the cost of each song and y to represent the cost of each game.
Solve the system using the elimination method. Show all the steps leading to your answer.
Write 1-2 sentences to explain what the solution means for this situation.
Mathematics
1 answer:
OLga [1]3 years ago
8 0
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?


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3 years ago
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<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

3 ( x ) + 55 = 85

Answer To Solving Y:

Let's solve your equation step-by-step.

3x + 55 = 85

Step 1: Subtract 55 from both sides.

3x + 55 − 55 = 85 − 55

3x = 30

Step 2: Divide both sides by 3.

3x / 3 = 30 / 3

x = 10

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer To The Angle:

( 3 ) ( 10 ) + 55 = 85

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2 ( y ) - 5 = 95

Answer:

Let's solve your equation step-by-step.

2y − 5 = 95

Step 1: Add 5 to both sides.

2y − 5 + 5 = 95 + 5

2y = 100

Step 2: Divide both sides by 2.

2y / 2 = 100 / 2

y = 50

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Answer To The Angle:

( 2 ) ( 50 ) − 5 = 95

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

Please don't come at me if I am wrong.....:\

<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3<3

But, the anwer should be 180 degrees

8 0
2 years ago
Quantity of 42.1% of 375.4
Stells [14]
That is =
(42.1/100)*37.5
=(421/1000)*(375/10)
=(157875/10000)
=15.7875
=15.8
=16
8 0
3 years ago
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