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givi [52]
2 years ago
15

What is the measure of the third angle of this triangle?

Mathematics
1 answer:
Dovator [93]2 years ago
6 0
Every triangle is equal to 180 degrees so u need to subtract what is already shown form 180,, 180-120=60 and then 60-40 20 so the final degree is 20 ,,,,, to check u can add them all together if if they equal 180 u should be g
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Express the ratio below in its simplest<br> form 3:6:6
matrenka [14]

Answer:

1:2:2

Step-by-step explanation:

To simplify this ratio, you need to find a common factor to divide by. In this instance, that would be 3.

3 0
2 years ago
A theater can seat 273 people. The number of rows is 8 less than the number of seats in each row. How many rows of seats are the
artcher [175]
R * s = 273
r = s - 8.....s = r + 8

r(r + 8) = 273
r^2 + 8r = 273
r^2 + 8r - 273 = 0
(r - 13)(r + 21) = 0

r - 13 = 0
r = 13

r + 21 = 0
r = -21.....extraneous solution...not ur answer

r = 13
s = r + 8 = 13 + 8 = 21

so there are 13 rows.....each row containing 21 seats



3 0
3 years ago
X = –6 3x − 2y = –6 solve using substetution <br> NEED FAST
kondaur [170]

Answer:

(x = -6), (y = -6)

(-6,-6)

Step-by-step explanation:

X=-6

3x - 2y = -6

3(-6) - 2y = -6

-18 - 2y = -6

What you do to one side, you do to the other. And when you take it over to the other side, you'll have to turn -18 into a positive 18.

-2y = 18 - 6

-2y = 12

Divide both sides by -2

y = -6

7 0
3 years ago
What is z if -1/3+2z=-5/6?
Wittaler [7]
-1/3+2z=-5/6
-2/6+2z=-5/6
Add 2/6 to both sides:
2z=-3/6
2z=-1/2
Divide both sides by 2
z=-1/4

Hope this helps :)
7 0
3 years ago
What is 29/5 as a mixed fraction
Alina [70]
Divide 29 by 5 which equals 5 r4. So, the answer is 5 wholes and 4/5 
6 0
3 years ago
Read 2 more answers
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