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Allisa [31]
3 years ago
14

2x - 1y = 6 -3y = -6x + 18 please explain how you got the answer, thank you :)

Mathematics
1 answer:
IRISSAK [1]3 years ago
8 0

Answer: {y,x}={2,8}

// Solve equation [2] for the variable  y

 [2]    y = -2x + 18

// Plug this in for variable  y  in equation [1]

  [1]    (-2x+18) - x = -6

  [1]     - 3x = -24

// Solve equation [1] for the variable  x

  [1]    3x = 24

  [1]    x = 8

// By now we know this much :

   y = -2x+18

   x = 8

// Use the  x  value to solve for  y

   y = -2(8)+18 = 2

Solution :

{y,x} = {2,8}

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If x is how long your friend swims and y is how long you swim, the answer would be x + 15 = y
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3 years ago
A package of four bottles of a sports drink cost $5.28. what is the cost per bottle
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3 0
3 years ago
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the number of painted turtles in a pond is ten less than one-third of the number of frogs. Let f represent the number of bullfro
aalyn [17]

The expression for the number of painted turtles in the pond will be 1/3f - 10.

Let the number of bullfrogs be represented by f.

From the given information, the number of painted turtles in a pond is ten less than one-third of the number of frogs, the expression for this will be:

= (1/3 × f) - 10

= 1/3f - 10

Therefore, the expression for the number of painted turtles in the pond will be 1/3f - 10. This implies that we have to multiply the fraction by f and then subtract 10 from the value.

In conclusion, the correct option is 1/3f - 10.

Read related link on:

brainly.com/question/24950597

7 0
2 years ago
V(x + 9)2 = + 25<br> If x + 9 = 5, then x =<br> If x + 9 = -5, then x =
ipn [44]

Answer:

x = -4, v = 2.5

x = -14, v = -2.5

Step-by-step explanation:

I am a bit confused with the beginning part of the question. From what I understand, you are trying to solve for x and then plug x into the top equation to find the value for V. I am sorry if that is not what you are looking for. If it is, look below!

x + 9 = 5

x = 5 -9

x = -4

v(x + 9)2 = 25

v(-4 + 9)2 = 25

v(5)2 = 25

v(10) = 25

v = 25/10

v = 2.5

x + 9 = -5

x = -5 -9

x = -14

v(x + 9)2 = 25

v(-14 + 9)2 = 25

v(-5)2 = 25

v(-10) = 25

v = 25/(-10)

v = -2.5

I hope this helped! If not, I am sorry. :(

4 0
3 years ago
Help please it’s important
andriy [413]

Answer:

Step-by-step explanation:

Division

3 0
3 years ago
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