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leva [86]
2 years ago
11

Use the substitution method to solve the system of equations: y - 2x = 3; -X = y - 9. Write the answer as a point.

Mathematics
1 answer:
aleksley [76]2 years ago
4 0

Answer:

Hello! I just took the test not too long ago the answer is -3

Have a good day! please mark brainliest!

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Evaluate (y - 9) + (3 + x), when y = 15 and x = 5​
svet-max [94.6K]

Answer:

14

Step-by-step explanation:

It says 'Evaluate (y - 9) + (3 + x), when y = 15 and x = 5​'.

So we'd put 15 in y's place. It'll look like this (15 - 9).

Then we'd put 5 in x's place. It'll look like this (3 + 5).

You subtract (15 - 9) which equals 6. And you'd add (3 +5) which equals 8. You add 6 + 8 together since those are your answer for the parentheses. Your final should be 14. Hopefully this helped!

5 0
2 years ago
Need to show a 5 step problem on how to get the answer. Using x and y
ZanzabumX [31]

Answer:   $5.64

<u>Step-by-step explanation:</u>

Let x represent 1 box of batteries

Let y represent 1 case of batteries

Given: 14x = 3y

Given: 158 = 14x + 3y

Use substitution: 158 = 14x + 14x

Simplify:                158 = 28x

Divide by 28:        5.64 = x

4 0
3 years ago
Please help asap!!!!
Neporo4naja [7]

Answer:

1) Area = 12cm²

2) x = 5cm

Surface area : 69cm²

Step-by-step explanation:

Opposites sides in a rectangle would equal the same.

so Top/bottom = 20+20=40

Front/back = 15+15=30

40+30=70cm²

94-70=24cm² for left and right side 24÷2=12cm²

2) Those lines represents what side it is equal too which also means the same.

3cm, you know that base x height = surface area so surface area ÷ height = base

15/3=5cm

x=5cm

Formula : Base x Height = One surface area

Front/Back= 15+15=30

Top/bottom = 5x3 = 15+15=30

side/side = 3x3=9

30+30+9=69cm²

7 0
2 years ago
What is the y-intercept for the graph of this line? 3x - 5y = 6 - 6
photoshop1234 [79]

The right side of the equation is 6-6 which equals 0.

So the equation could be written as 3x-5y = 0

Since the right side of the equation is zero both the x and y intercepts are (0,0)

4 0
3 years ago
Read 2 more answers
Edafjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjj
Arturiano [62]

Answer:

fjjjjjjjjjjjjjj?

aefieoapowiejfie

8 0
3 years ago
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