3x + 8y = -5
+ -2x + 2y = 18
______________
10y = 13
Solve for y, then put the value of y back into one of the equations to get the value of x.
Answer: i know the answer how about its -0
Step-by-step explanation:
18-3=15
Originally pay 25 = 75
450-75=375
375 + 75 = 450
C) 18 people were originally going on the trip and 15 are going now.
Idk about D
A right triangle has a perpendicular corner in it. This means that one of its angle has a measure of 90 degrees. The sum of all angles in the triangle is 180. To determine the acute angle, or more importantly, the last missing angle, it would be,
180 = 90 + 63.7 + x
x = 180 - 90 - 63.7
x = 26.3 degrees
This is an acute angle because it is less than 90. So, the answer is 26.3 degrees.