Since it’s a cube all sides are equal
Answer:
65
Step-by-step explanation:
35+40+27+42+45+50=249 249+65=315 315/7=45
Answer:
<u>Jamie's mistake</u>: The last term and not . Jamie multiply the signs incorrectly.
<u>Advice to avoid this mistake in the future</u>: Jamie should remember that when two negative numbers are multiplied, the result is a positive number.
Step-by-step explanation:
The correct procedure is the one shown below:
You can identify that the last term is actually and not , so Jamie multiply the signs incorrectly.
To avoid that mistake in the future, Jamie must remember the mulitplication of signs:
So when two negative numbers are multiplied, the result is a positive number.