Answer:
30 and 9
Step-by-step explanation:
x+y=39 , x-y=21
Solve for x:
x+y=39 , x-y=21
x= 30
Substitute x with 30:
(30)+y=39 , (30)-y=21
Solve for y:
y=9
Answer:
its 40% but since it's not there it could be 45%
Step-by-step explanation:
hope this helps
Answer:
D
Step-by-step explanation:
x = 2 and y = -7
Plug those values into the equation:
2(2) - (-7) = 11
Answer:
21/40
Step-by-step explanation:
138,000/ 128,000 = 7.8125% Just divide new value into old value