Answer:
2.5
Step-by-step explanation:
divide to find unit rate
15/6=2.5
Answer:
2b^2
Step-by-step explanation:
according to the question equation is
(a^2 + b^2 ) - (a^2 - b^2)
a^2 + b^2 - a^2 + b^2
plus a square and minus a square gets cancel
b^2 + b^2
since they are like terms they can be added
2b^2
Answer:
x=7
Step-by-step explanation:
Add common variables.
(6x-4x)+7= 8+7x-26
2x+7= 8+7x-26
Subtract the least variable to both sides.
2x+7= 8+7x-26
-2x -2x
Now, simplify the equation.
7= (8-26)+5x
7= -18+5x
Add 18 to both sides.
7= -18+5x
+18 +18
Divide both sides by 5 to isolate the variable.
<u>35</u>=<u> 5x</u>
5 5
x=7
So first you need 1 adult with every 6 children so do 6*4 and got 24. From that you get 4 adults with 2 leftover children. For the other class which has 28 children, you would still need 4 adults. Now since you said the teacher is included as an adult only 3 more are needed for the trip, and that is your answer.
