Answer:
19
Step-by-step explanation:
38 - 50% = 19
(3x - 10) + 45 + (2x + 10) = 180 (the sum of the angles is 180)
3x - 10 + 45 + 2x + 10 = 180
3x + 2x = 180 + 10 - 45 -10
5x = 135
x = 27
3(27) - 10 = 71 (first angle)
2(27) + 10 = 64 (second)
45 (third)
71 + 64 + 45 = 180
The elephant was almost 20 pounds
Answer:
That is very confusing!
Step-by-step explanation:
Answer:
Step-by-step explanation:
![\sf cos(z)=\cfrac{adjacent\: side \: of \:\angle z}{hypotenuse}](https://tex.z-dn.net/?f=%5Csf%20cos%28z%29%3D%5Ccfrac%7Badjacent%5C%3A%20side%20%5C%3A%20of%20%5C%3A%5Cangle%20z%7D%7Bhypotenuse%7D)
![\sf cos(z)=\cfrac{12}{20}](https://tex.z-dn.net/?f=%5Csf%20cos%28z%29%3D%5Ccfrac%7B12%7D%7B20%7D)
![\sf cos(z)=\cfrac{3}{5}](https://tex.z-dn.net/?f=%5Csf%20cos%28z%29%3D%5Ccfrac%7B3%7D%7B5%7D)
Hope it helps!