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Crank
3 years ago
10

Kylie bought pizza for $12.75 for medium drinks Apollo’s pizza define a variable and write an expression to represent the total

amount of money spent then find the total cost of one drink cost three dollars
Mathematics
1 answer:
ycow [4]3 years ago
4 0
The answer is 15.75 for the total
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Algebra
vladimir2022 [97]
(2x + 3y = 12) x (-2)
(4x - 3y = 6) x 1

-4x - 6y = -24
4x - 3y = 6

You can cancel out the x values by adding the two equations together. 
(-4x + 4x) + (-6y - 3y) = (-24 + 6)
-9y = -18
y = 2

Solve for x now...
4x - 3(2) = 6
4x - 6 = 6
4x = 12
x = 3

Check... (x = 3, y = 2)
2(3) + 3(2) = 12 
6 + 6 = 12
12 = 12 <- this works! 

4(3) - 3(2) = 6
12 - 6 = 6
6 = 6 <- this works!
5 0
3 years ago
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100 Points and Brainly.
user100 [1]

function :  y = (-x) - 6

<u>Find x-intercept</u> :

  • (-x) - 6 = 0
  • (-x) = 6
  • x = -6

<u>Find y-intercept</u> :

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  • y = -6

mark these two points on both the axis and draw a straight linear graph.

passes coordinates : (0, -6), (-6, 0)

6 0
2 years ago
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Cual es el decimal de 9/20
I am Lyosha [343]

Answer:

.45

Step-by-step explanation:

Para convertir 9/20 a decimal, simplemente divide 9 entre 20. No se preocupe. No necesita sacar la calculadora, porque lo hicimos por usted.

9/20 como decimal es: .45

7 0
3 years ago
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Please answer the question in the picture
Alex
65. Days are. Be kids
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Can anyone help out?
vampirchik [111]
Exponential decay is the answer
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3 years ago
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