A 10-yr-old competes in gymnastics. For several competitions, she received the following "All-Around" scores: 35.5, 36.3. 36.6, and 36.9. Her coach recommends that gymnasts whose "All-Around" scores average at least 36.5 moves up to the next level. What "Ail-Around" scores in the next competition would result in the child being eligible to move up? The child needs a score of to move up to the next level of the competition.

The child needs a score of 37.2 to move up to the next level of the competition.

Step-by-step explanation:

The mean is the sum of all scores divided by the number of competions. So

In which S is the sum of all her scores and T is the number of competitions.

The child has five competions:

Which means that

She has to get a mean of at least 36.5, so

Her scores are: 35.5, 36.3. 36.6, and 36.9. Her last score, i am going to call x. So

The child needs a score of _____ to move up to the next level of the competition.

This score is x. So

the answer will be b x² +x-1

step-by-step explanation:

x is the total time in minutes for the free response

you are given number of questions as 15 - m and time per item as 8 minutes

to find x multiply the two givens together:

x = 8 * (15-m) = 8(15-m)