Answer:
honestly im not sure but i am doing that same work at the moment and i just ingore the m. it shouldnt change what you get as your answer.
Well, we kinda hope that noone is splitting the students into parts;) so that means that the number of students must be divisible by 4 and 9, and since they don't have any divisors in common, it must be divisible by 4*9=36, and this is also the correct answer - 36.
5(x + 2) + 6(x - 3) = 25
Simplify.
5x + 10 + 6x - 18 = 25
Add like terms.
(5x + 6x) + (10 - 18) = 25
Simplify.
11x - 8 = 25
Add 8 to both sides.
11x = 25 + 8
Simplify.
11x = 33
Divide both sides by 11.
x = 3
~Hope I helped!~
If he'll have 5 tests and the average is 90, this means that the scores of each test added must be equal to 90 * 5 or 450.
450 = 90 + 82 + 95 + 86 + x
450 = 353 + x
97 = x which means that he must get a 97% on the fifth test to have an average of 90%
Answer:
18
Step-by-step explanation:
13 + (⅔)t = 16 + (½)t
(⅔ - ½)t = 3
t/6 = 3
t = 18
