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Aleksandr-060686 [28]
3 years ago
7

Solve by the linear combination method. 8g – 5h = 7 4g + 10h = 1

Mathematics
1 answer:
Andreas93 [3]3 years ago
4 0
In order to combine, you have to multiply the top equation by 2 so you get 8g + 10h = 8 8g - 10h = 4 --------------- 16g = 12 g = 3/4 --> plug it in to solve for h 8(3/4)-10h = 4 6-10h=4 10h=2 h=1/5 Your result: g=3/4, h=1/5
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Bas_tet [7]
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answer 
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5 0
3 years ago
GIVING 100 POINTS!!!!
IrinaK [193]

Answer:

As per dot plots we see the distribution of prices is close but majority of prices are concentrated in different zones. So MAD would be more similar by the look.

<u>Let's verify</u>

<h3>Neighborhood 1</h3>

<u>Data</u>

  • 55, 55, 60, 60, 70, 80, 80, 80, 90, 120

<u>Mean</u>

  • (55*2+ 60*2+ 70+ 80*3 + 90+ 120)/10 = 75

<u>MAD</u>

  • (20*2+15*2+5+5*3+15+45)/10 = 15
<h3>Neighborhood 2</h3>

<u>Data</u>

  • 100, 110, 110, 110, 120, 120, 120, 140, 150, 160

<u>Mean</u>

  • (100 + 110*3+ 120*3+ 140 + 150+ 160)/10 = 124

<u>MAD</u>

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As we see the means are too different (75 vs 124) than MADs (15 vs 20.4).

7 0
3 years ago
Read 2 more answers
2(-3n-5)-5(4n-8) Simplify
Mnenie [13.5K]
2(-3n-5)-5(4n-8)
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7 0
4 years ago
Read 2 more answers
Our teacher had1/2 of an eraser left.she gave that to her 2 students equally.how much of the eraser did every student take home
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Hello,

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Each student takes home 1/4 of the eraser.

Hope this helps!
5 0
4 years ago
Read 2 more answers
Determine a scalar c so that the angle between a = i + cj and b = i + j is 45°.​
Marina CMI [18]

Answer:

c=0

Step-by-step explanation:

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1+c=sqrt(1+c^2)

(1+c)^2=(1+c^2)

2c=0, c=0

6 0
3 years ago
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