Answer:
-7 - 2 = -9 (combine the numbers,simplify)
12 + (-4) = 8 (Simplify the Expression)
-8(-6) = 48 (Simplify the Expression)
18/-3 = -6 ( Simplify the Expression)
Hope this helps :)
For this case, the first thing we are going to do is assume that all the tests are worth the same.
Then, we define a variable:
x: score of Mona's last test
We write now the inequality that models the problem:
From here, we clear the value of x:
Answer:
the lowest grade that Mona can get for her last test so that her test average is 90 or more is:
x = 87
answer = ) 100.80
Step-by-step explanation:
I subtracted the people who payed on the 1st of the month which was 4 from the total 12 memebers. I got 8, then that 8 payed on the 2nd of the month so I multiplied 8 by 12.60
Six runners can line up 36 different ways