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mezya [45]
3 years ago
7

Find the value of each variable

Mathematics
2 answers:
ale4655 [162]3 years ago
4 0

31-12-2005 7th 578u75tvxy

mylen [45]3 years ago
3 0

Answer:

20. 4n+5+8n-5=180(linear pair)

12n=180

n=15

21. 9x-6=8.5x+2(can be seen from image)

9x-8.5x=2+6

0.5x=8

x=8/0.5

x=80/5

x=16

22. 4z+3z+6=90°(Complementary)

7z+6=90°

7z=84°

z=12°

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Mr. Smith gave a cashier a $50 bills for a purchase of $38.70. The cashier gave him a $10 dollar bill, two $1 bills and three di
Aleksandr-060686 [28]

Answer

no he gave him a dollar extra. if his total is 38.70 and gave 50 if you subtract it would be 11.30 not 12.30

Step-by-step explanation:

4 0
3 years ago
What is the rate of change in the y-values with respect to the x values
Aleks [24]

Answer:

the average rate of change in y with respect to x over the interval is 7. that is, for every single unit by which x changes, y on average changes by 7 units.

Step-by-step explanation:

8 0
2 years ago
Solve for the height (h) of this triangular prism if the volume is 1080. The
dexar [7]

Answer: 18

Step-by-step explanation:

Area of triangle = (0.5) × base(b) × height(h)

Base of triangle = 8

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Area of triangle = (0.5) × 8 × 15 = 60

Volume of triangular prism = B × height

Where h = height

B = area of triangle

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Find the height(h) of the triangular prism

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1080 = 60 × h

h = 1080 / 60

h = 18

4 0
2 years ago
Will mark brainliest for whoever answers correctly
siniylev [52]
I think it is D:{5,-infinity}
6 0
2 years ago
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irga5000 [103]

Answer:

The answer is 1 or infinite solutions

Step-by-step explanation:

When you plug in the value of -5.5 into the equation, you will eventually end up with -17.5=-17.5, making the answer infinite or 1.

7 0
2 years ago
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