Answer:
2nd option: n + 5n = 42
Step-by-step explanation:
Open bracket
-69x+92+3x=56
Collect like term
-66x=-36
Divide both side by -66
x=6\11
Answer:
4
Step-by-step explanation:
if you multiply 4 by 3, you will get 12, and if you subtract 7, you get 5. I hope this helps ;)
In order to solve this problem, the approach should be formulating equations such that they form a system of linear equations. Let's start by assigning variables. Let x be the number of homeruns made by Peter, and y be the number of homeruns made by Alice. Therefore,
x = 2(y - 6)
This is the equation for the relationship between Peter's and Alice's hits. The second equation would be the sum of their hits:
x + y = 18
These are the two independent equations in order to solve the two unknowns, x and y. Substituting the first equation into the second equation,
2(y - 6) + y = 18
2y - 12 + y = 18
3y = 18 + 12
3y = 30
y = 10
Using y=10 to the first equation:
x = 2(10 - 6)
x = 8
Therefore, Peter made 8 homeruns, while Alice made 10 homeruns for a total of 18.
Answer:
125 times bigger.
Step-by-step explanation:
A great way to visualize this problem is to think of it as a volume problem itself. Another good way to think about it is to plug in numbers in its place.
Way #1
5*5*5 (or 5^3)=125
Way #2
(2*2*2)=8
(2*5)*(2*5)*(2*5)=1000
1000/8=125
