Answer:
x=4 y=8
Step-by-step explanation:
Solve for the first variable in one of the equations, then substitute the result into the other equation
Answer:
PERIOD
Step-by-step explanation:
The 90% confidence interval is (70 - 4, 70 + 4). The margin of error is 4%.
Answer:
X=60
Step-by-step explanation:
X fraction 2 - 5 = 25
X/2-5=25
X/2 =25+5
X/2=30
X=60
60 is the answer
