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NeX [460]
4 years ago
11

Are the following angle relationships possible? Explain.

Mathematics
1 answer:
mel-nik [20]4 years ago
7 0

Answer:

no

Step-by-step explanation:

The 5x+30 is the supplementary angle of the interior one:

180 - 5x - 30 = -5x + 150

Then they have to add up to 180:

4x-9 + 2x+3 -5x + 150 = 180

which simplifies to x = 36

So the angles would be 135, 75 and -30, which is impossible!

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valkas [14]

Answer:

(a) S=\frac{D}{T}

(B) S(average speed)=65.04\frac{km}{hr}

Step-by-step explanation:

Given

D=S*T

So, S=\frac{D}{T}

and

T=11.5 Hr

D=748 Km.

S(average speed)=\frac{748}{11.5}=65.04 kmph

6 0
3 years ago
What is the solution of 3x+y=2 & 4y=12-12x?
lorasvet [3.4K]

Answer:

Step-by-step explanation:

3x+y=2............(1)

4y=12-12x........(2)

Making y as subject in (1) and substitute in (2)

y = 2 - 3x......(3)

4(2 - 3x) = 12-12x

8 - 12x = 12 - 12x

12x - 12x = 12- 8

0 = 4

So no solution since variable cancelled out

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4 years ago
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hodyreva [135]
It’s changing by -2° F per hour
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3 years ago
This is for google classroom
AlexFokin [52]

Answer:

Take 1651 divided into 13 you get 127 so they can buy 127 posters . Then they sold them for 20 dollars a piece so take 20 times 127 which is 2,540 dollars that’s the money they got .

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The 3rd selection describes similar figures.

<span>Polygons ABCD and EFGH have the same shape and are sometimes different sizes.</span>
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