Answer: x = 9
Mel's mistake was in the last step, she multiplied by 2 instead of dividing by 2
Step-by-step explanation:
2x + 1 = 19
Subtract 1 from each side
2x = 18
Divide by 2
x = 9
Answer:
ok. ok. ok. ok. ok. ok. ok. ok. ok. ok.
Negative exponents work like this:

So, you have

This number is less than 1, so she will play tennis.
The difference between the number marking the third quartile (Q3) and the number marking first quartile (Q1).
Do you have a set of numbers you need help with?
Step-by-step explanation:
Hi... Your answer is 3 units