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olganol [36]
3 years ago
6

What is the value of a?

Mathematics
1 answer:
Luda [366]3 years ago
7 0

Answer:

a = 62

Step-by-step explanation:

The sum of the angles of a triangle is 180 degrees

a + 47+71 = 180

Combine like terms

a +118 = 180

Subtract 118 from each side

a+118-118=180-118

a =62

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Step-by-step explanation:

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Alex

Answer:

<h3>b=\frac{t-5}{4}</h3>

Step-by-step explanation:

4b+5=t

First, you must get the variable alone! Substract 5 from both sides!

4b<u>+5=t </u>

    -5  -5

The 5 cancels out because 5-5=0

The new equation is 4b=t-5

You must divide by 4 to get the variable alone since your solving for b!

<u>4b=t-5</u>

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5 0
3 years ago
Points A, B, and C lie on line segment AC. The ratio of AB:BC is 3:7, and the length of AC = 120. What is the length of BC?
Zanzabum
In terms of "ratio units," the length of AC is 3+7=10, so each one is worth 120/10 = 12. The length BC is 7 of those, or 7·12 = 84.
8 0
3 years ago
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PLZZ HELP
Digiron [165]
54 because there are 12 inches in a foot 12 divided by 3 is 4 and 6 divided by 3 is 2. Add the 2 and 4 and multiply that by 9
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3 years ago
The nth term of a sequence is 3n + 5
Scrat [10]

Answer:

5th term is 20

6th term is 23

4th term is 17

Step-by-step explanation:

So what you need to do is put the number that you are trying to get in the space of n. So if you want the 5th term, put the number in the n space. So it reads 3 5+ 5

Then times the 3 and the 5 that are next to each other that you put in the space of n

15+5

Then add them together so it’s 20

Hope that help.

4 0
3 years ago
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