Answer:
n = -1
Step-by-step explanation:
To make n on its own, you have to subtract 1 from both sides
0 - 1 = -1 + 1 + n
-1 + 1 = 0
-1 = n
Variable expenses because they are not fixed and can be changed.
Answer:
A = 60
B = 30
Step-by-step explanation:
Complementary angles add to 90 degrees
A = 2B A is twice the measure of B
A + B =90 Complementary angles add to 90 degrees
Substitute the first equation in for the second
A+B =90
2B+B=90
Combine like terms
3B = 90
Divide by 3
3B/3 = 90/3
B = 30
A = 2B
A = 2*30
A = 60
Answer:
The area of the blue shaded space is 152 cm².
Step-by-step explanation: