Answer:
109.2
Step-by-step explanation:
Of means multiply
52% * 210
Change to decimal form
.52 * 210
109.2
Answer:
(15,9)
Step-by-step explanation:
The solution to the system is where the two graphs intersect
The intersect at x=15 and y =9
(15,9)
Possibly A)249.6
Explanation
Answer:
8y + 10
Step-by-step explanation:
3 + (7 + 8y) =
Apply the associative property:
= (3 + 7) + 8y
= 10 + 8y
Apply the commutative property:
= 8y + 10
To solve equations like this we need to do inverse operations.
First we need to build an equation: 9+3x=21
We pass the nine to the other side, subtracting the 9 to 21, that leaves us with 3x=12
After that we just divide 12 by 3, wich gives us x=4, or, as it says in the question: n=4
Now let's double check:
N=4, since 3*4=12 and 12+9=21
Hope it is helpful :)
