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xeze [42]
3 years ago
10

X Combine like terms: 10k - 2k + 7s2 - 32

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
4 0

Answer:

7s^{2} + 8k - 32

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What is the first step in solving 2x=y X+y=30
Vanyuwa [196]

Answer: x = 10 y=20

Step-by-step explanation:

You can answer this question by plugging in each equation:

2x=y, x+y=30. Let us plug y as 2x in the second equation x+y=30

x+2x= 30

3x= 30

x=10

After we found x we can then find y by plugging the 10 for x.

2(10) = y

y =20

or you could plug in the other equation

10+y=30

subtract 10 from 30 and we get 20

to double check we can plug in both numbers

2(10) = 20 which is correct

and 10 + 20 = 30 which is correct

8 0
3 years ago
What are the solutions to the quadratic equation x^2-15x+36=0
ZanzabumX [31]
X² - 15 x + 36 = 0
x² - 12x - 3x + 36 = 0
x( x - 12) - 3( x - 12) = 0
(x - 3)( x - 12) = 0

x - 3 = 0
x = 3
or
x - 12 = 0
x = 12

The solutions are 3 and 12
7 0
3 years ago
I don’t get how to answer 8x + 4 - x/2
nikitadnepr [17]
Ask you to solve the equation as x

7 0
3 years ago
Please look at the picture and answer it thank you.
yulyashka [42]
<h3>Answer :- </h3>

  • 15

<h3>Solution :- </h3>

  • 8x + 14 + 42 = 180
  • 8x + 56 = 180
  • 8x = 180 - 56
  • 8x = 124
  • x = 124/8
  • x = 15

8 0
2 years ago
Read 2 more answers
What is the costant of proportionality in the equation y=2.5x
andrew-mc [135]

Answer:

k=2.5

Step-by-step explanation:

y \propto x

y=kx

k is the proportionality constant.

y=2.5x

The y is the independent variable and x is the dependent variable.

The proportionality constant is 2.5.

8 0
3 years ago
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