Answer:
x=25
Step-by-step explanation:
because of vertical angles theorem you set them equal to each other
4x+50=150
subtract 50 from both sides
4x=100
devide by 4 on both sides
x=25
If i’m not mistaken, it should be 2/10, or 20/100. and it’s percentage would be 20%
Answer:
3x - 3y + 15
Step-by-step explanation:
Multiply everything inside the parenthesis by the outside number.
3 times X gives us 3x
3 times -Y gives us -3y
3 times 5 gives us 15
Answer:
Monica spent 0.55 hours listening to Brahms.
Step-by-step explanation:
We are given the following in the question:
Amount of time spent listening to tapes of Beethoven and Brahms =
Amount of time spent listening to Beethoven =
Total time spent listening to Brahms =
Amount of time spent listening to tapes of Beethoven and Brahms - Amount of time spent listening to Beethoven
Thus, Monica spent 
listening to Brahms.
Answer:
cos z = 35 / 37
Step-by-step explanation:
cos z is the ratio of the adjacent side of a triangle (the side adjacent to angle z to the hypotenuse:
cos z = (adj. side) / (hypotenuse)
Here we have cos z = 35 / 37
