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arsen [322]
2 years ago
11

Which method would you use to solve this System of Equations? x = -2 2x + y = 5

Mathematics
1 answer:
IgorLugansk [536]2 years ago
3 0

x= -4x + y = 5

-4x /  5 = -0.8

So its A. - Substitution

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Read 2 more answers
3) Valerie works at a local amusement park. She earns $9.80 per hour. She 20 points
NemiM [27]
<h3>Answer:  Choice A</h3><h3>9.80h+10 = 88.40</h3>

===========================================================

Work Shown:

  • h = number of hours worked.
  • 9.80h = amount of money earned after working h number of hours (ignoring the meal bonus).
  • 9.80h+10 = total amount of money earned after adding on the meal bonus.
  • 9.80h+10 = 88.40 is the equation we use since the total 9.80h+10 is the same as the total she earned 88.40 dollars.

--------------------

Extra info (optional section)

If you want to solve for h, then you could follow these steps.

9.80h+10 = 88.40

9.80h = 88.40-10 ... subtract 10 from both sides

9.80h = 78.40

h = 78.40/9.80 .... divide both sides by 9.80

h = 8

Valerie worked 8 hours on Friday.

As a check,

9.80h + 10 = 88.40

9.80*8 + 10 = 88.40

78.40 + 10 = 88.40

88.40 = 88.40

The answer is confirmed.

3 0
3 years ago
A bus entered the freeway and traveled at a constant speed of 80 mph. Two hours later a second bus followed the first bus, enter
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Answer:

It will take about 15-20 Minutes to catch up to that bus.

Step-by-step explanation:

65+ 20= 85 so its a tad bit over but it works.

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The value of a movie poster is increasing at a rate of 3.5% per
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I actually didn't get the right answer and I just edited it right now I'm sorry I dont have an explanation!

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What is the slope of the line passing through the points (7, 10) and (5, 16) ?<br> Thank you
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Answer:

m=-3

Step-by-step explanation:

m=y2-y1/x2-x1

m=16-10/5-7

m=6/-2

m=-3

4 0
2 years ago
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