Answer:
1/2
Step-by-step explanation:
30s = 1/4
30s=1/4
30s=1/4
There are 80.5 tens in 805
Answer=24 blue marbles and 3 red marbles
r=red marbles
b=blue marbles
b=3(r+5)
27=b+r
substitue b for '3(r+5)'
27=3(r+5)+r
27=3r+15+r
27=4r+15
subtract 15 from both sides
12=4r
divide both sides by 4
3=r
There are 3 red marbles
27=b+r
27=b+3
subtract 3 from both sides
24=b
There are 24 blue marbles
The probability is 4:20
It is correct because there are 20 students and there could be 4 guesses
Answer:

Step-by-step explanation:
All three angles in an equilateral triangle are equivalent, and they sum up to 180°, so each angle measures 60°:
60° = [8x - 44]°
+ 44° + 44°
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![\displaystyle \frac{104°}{8} = \frac{[8x]°}{8} \\ \\ 13° = x](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5Cfrac%7B104%C2%B0%7D%7B8%7D%20%3D%20%5Cfrac%7B%5B8x%5D%C2%B0%7D%7B8%7D%20%5C%5C%20%5C%5C%2013%C2%B0%20%3D%20x)
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