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AnnyKZ [126]
3 years ago
11

Please help! (85 points)

Mathematics
2 answers:
allochka39001 [22]3 years ago
8 0
Recall that all three angles in a triangle equals 180.
Knowing this, we just have to add up all the angles and figure out what the value 'x' is.

(x-22 + x-17 + 3x+19) = 180
Simplify:
5x - 20 = 180
Add 20 to both sides:
5x = 200
Divide both sides by 5:
x = 40

Now that we found the value for x, we need to solve for angle A.
Simply input the value of 'x' into angle A's equation:
40 - 22 = 18

Angle A = 18 degrees

Good luck! If you need me to explain anything, just ask :))
-T.B.
Talja [164]3 years ago
4 0

Answer:

The answer is A=18

Step-by-step explanation:

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Dara has to solve 35 math problems for homework. She has completed 14 of them. What fraction of the problems does she have left
oksian1 [2.3K]

Answer:

The answer is 21/35 or 3/5

Step-by-step explanation:

35-14=21

6 0
3 years ago
How do I solve for x?<br> -3x+7=1
inna [77]

Answer:

x=2

Step-by-step explanation:

              -3x+7=1

subtract 7 from both sides: -3x+7-7=1-7

simplify: -3x=-6

divide both sides by -3:  \frac{-3x}{-3}=\frac{-6}{-3}

simplify: x=2

4 0
3 years ago
Read 2 more answers
I don't understand the bottom with 1/2= and 0.48=! It says find the corresponding equivalent for either the decimal or fraction
zepelin [54]
So basically, you have to find the decimal that equals 1/2 and the fraction that equals 0.48, but it has to be in simplest form. If you divide 1 by 2, you get 0.5, which would be the answer to 1/2=. For 0.48=, you would start by putting 48 over 100 because if you read the decimal aloud, it is 48 hundredths and 0.48 goes to the hundredths place. Then, you would begin to simplify 48/100. A common divisor for those 2 numbers is 2, but you could also use 4. I am going to use 4, so 48/100=12/25. Now that you have the fraction 12/25, look to see if there are any common factors. There are none, so 0.48=12/25. 
Hope this helps!! :)
8 0
3 years ago
Ella writes about 8 songs every 3 months. At this rate, how many songs could she write in 27 months?
Alja [10]

Answer:

she will write 72 songs in 27 months

Step-by-step explanation:

3 x 9 = 27

so do 8 x 9

you get 72

7 0
3 years ago
Read 2 more answers
For which values of x is the expression undefined?
lord [1]

Answer:

-3, -6

Step-by-step explanation:

Any number of x that makes the bottom 0 makes the expression undefined.

Factor the polynomial in the denominator:

(x+3)(x+6)

Values of x that makes the expression undefined are -3 and -6

Support me by choosing my answer as the brainiest :)

5 0
2 years ago
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