Answer:
36girls
Step-by-step explanation:
3/1*12=36. To check 36/12=3/1=3:1
Answer:
40
Step-by-step explanation:
I think they all are right are you not confident about one ...? I can explain it to you
Answer:
<em>She needs </em><em>77 </em><em>on her last test to earn an 82 for the quarter.</em>
Step-by-step explanation:
Maria scored 72, 97, and 82 on her first three math tests.
She wants to have a mean score of 82 for the quarter.
Let us assume that she must score x on her last test to earn an 82 for the quarter.
So the average score will be,

But the average score is given as 82, so




