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RoseWind [281]
3 years ago
14

Can somone help me pls? i am really bad at this. number 12 :)​

Mathematics
2 answers:
Aleksandr [31]3 years ago
5 0

Answer:

m∠3 = 78

Step-by-step explanation:

Okay, since a triangle has 3 sides, we only need to find the measure of m∠3.

A triangle is made up of 180 degrees, so we can make an equation with 180 as what the equation is equal to.

Since m∠1 = 70, and m∠2 = 32, we will add those together with a variable x,

70+32+x=180

70 plus 32 is 102.

102+x=180

To get 102 to the other side we need to do the opposite of addition, which is subtraction.

180-102=78

So the answer is 78.

olya-2409 [2.1K]3 years ago
3 0

whats the question

ill edit the answer in you put the question

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Ed takes five 100-point tests in his algebra class. He scores 87, 85 and 87 points on the first three tests. If the scores of hi
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Answer:

Step-by-step explanation:

When we take an average of something, we have to add up all the data on the somethings and then divide by the number of somethings we have. Ed takes 5 tests, and we have scores for them; we also have his current average. What we don't know for sure are 2 of the 5 test scores, but we have enough to determine what they are.

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3 years ago
What is the next number? 2+3=8 3+7=27 4+5=32 5+8=60 6+7=72 7+8=?
ale4655 [162]

Answer:

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2 + <em>3</em> = <u>8</u>

<u>8</u> : 2 = 4; 4 - 1 = <em>3     (subtract 1)</em>

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<u>27</u> : 3 = 9, 9 - 2 = <em>7     (subtract 2)</em>

4 + <em>5</em> = <u>32</u>

<u>32</u> : 4 = 8; 8 - 3 = <em>5     (subtract 3)</em>

5 + <em>8</em> =<u>60</u>

<u>60</u> : 5 = 12, 12 - 4 = <em>8     (subtract 4)</em>

6 + <em>7</em> = <u>72</u>

<u>72</u> : 6 = 12, 12 - 5 = <em>7     (subtract 5)</em>

7 + <em>8</em><em> </em>= <u>x</u>

<u>x</u> : 7 = y, y - 6 = <em>8     (subtract 6)</em>

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y - 6 = 8         <em>add 6 to both sides</em>

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8 0
3 years ago
What percent is 36 of 90?<br><br> can u show it by doing a cross multiply method?
algol13

Answer:

40 percent is right answer of 36 of 90

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