Solve for y by simplifying both sides of the equation, then isolating the variable.
y = 7x/2 - 3
20 has been added to the total of scores, so the new mean for the 20 scores will be 20/20 = 1 higher than it was.
The new population mean is 15+1 = 16.
Answer:
28%
Step-by-step explanation:
We know that 100 percent is total. Mateo first scored 68/100, then a retake got his score up to 94/100.
First, subtract the two numbers
94 - 68 = 26
Put 26 over 94 to make this 26/94
Divide to get 0.28 (simplified and rounded)
So the increase was 28%
16.99 every 30 minutes
3 hours = 180 minutes + 45 minutes
225 minutes.
225/30 = 7.5
16.99(7.5) = 127.43
