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Klio2033 [76]
3 years ago
13

I will mark you brainliest!!!! Which ordered pair is the best approximation of the solution?

Mathematics
1 answer:
Ulleksa [173]3 years ago
5 0

Answer:

D

Step-by-step explanation:

We can substitute y = 2x + 1 in the second equation

2x + 1 = -7x + 8

Add 7x to both sides

9x + 1 = 8

Subtact 1 from both sides

9x = 7

x = 7/9

Substituing x in the first equation

y = 14/9 + 1

x rounds to 0.8

y rounds to 2.5

 

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PLEASE HELP ME ASAP 20 POINTS PROMISE.
kotykmax [81]

Answer:

250 miles

Step-by-step explanation:

50+.4x=.6x

50=.2x

x=250 miles

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3 years ago
What is the slope of the line passing through the points (2, 5) and (-1, -4)? show your work
Sati [7]

Answer:

We can solve this question using the slope equation which is y2-y1/x2-x1

If you use that formula and sub in the coordinates

-4 - 5 / -1-2

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The slope should be 3/1

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3 years ago
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How do you do this problem?
Sergio039 [100]
Do the diameter of the rectangle the divid that by 2 and them multiply that time three

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3 years ago
How permutations are used to solve the problem.
lidiya [134]
What’s the problem???
4 0
3 years ago
In the app you are creating, a duck is going to fly from the coordinates (1, 3) then go 3 units right. And 6 units down. Write a
quester [9]

Answer:

y=-2x+5. (4,-3)

Step-by-step explanation:

1) What's being asked in other words is to write a function. So the initial point is (1,3). In x-axis, a translation movement can only be to the right or to the left. Similarly for y-axis the possible movements are shifting up or down. The question says, 3 units right for x-cordinate and 6 units down for y cordinate. So the final point of this translation would be (1+3,3-6) =(4,-3)

2) To write a linear function we need to find out the slope:

m=\frac{-3-3}{4-1}=m=\frac{-6}{3} m=-2

3=1(-2)+b\\3+2=b\\ b=5\\ \\-3=4(-2)+b\\ b=8-3\\ b=5

y=-2x+5

<u>Proof:</u>

x=1

y=-2(1)+5

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x=4

y=-2(4)+5

y=-8+5

y=-3 Then (4,-3)

4 0
3 years ago
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