Answer:
B
Step-by-step explanation:
1.6/0.2=8
10⁵-10²=10³
All angles in triangle inside add up to 180
so
the angles are y, 79,37
therefor
y+79+37=180
solvde for y
y+79+37=180
add
y+116=180
subtract 116 from ot hsides
y=64
angle y=64 degrees
Please provide the other fraction so we can give you the right number or at least a picture.
Answer:
18
Step-by-step explanation:
10/0.5 = 20
20 * 0.9 = 18
If you multiply the top equation by -2 you get:
-4x -14y = 14 => -4x = 14+14y
now you can plug in the -4x into the second equation:
14+14y - 3y = -19 => 11y = -33 => y=-3
Fill in y=-3 in either equation to find x:
2x - 21 = -7 => 2x = 14 => x=7
So your ordered pair is (7,-3)