Answer:
=3x+5
Step-by-step explanation:
Let's simplify step-by-step.
5x+5−2x
=5x+5+−2x
Combine Like Terms:
=5x+5+−2x
=(5x+−2x)+(5)
=3x+5
Answer:
=3x+5
Probability of getting heads: 1/2
Probability to get 2 heads out of three tries is: 1/8
Work: 1/2 x 1/2 x 1/2 = 1/8
Let us say the price of a table is 
and a price of a chair 
. Using this terminology we can say that the cost of 2 chairs and 5 tables is 
. We have a second equation though, 
from a table being 30 more than the price of a chair. Using this we can solve the system of equations. I think substitution is the quickest way to do this. Plug x from our second equation into the first equation.
This will simplify to the price of a chair is Rs 320. And add Rs 30 to that and we can find that the price of a table is Rs 350.
It is always good to check. So go ahead and check 
to see that the first equation works (we know the second equation works just by eyeballing. And it looks like the cost is Rs 2300! Hooray!
Answer:
126:54
Step-by-step explanation:
Simply write the 126 soccer players first, because it says soccer to volleyball
Write you ratio symbol :
Then write your 54 volleyball players
Lets say billiard balls are arranged in rows to form an equilateral triangle, then the first row consists of 1 ball, second row consists of 2 balls, and third row consists of 3 balls, and so on. So there must be 
balls in the 
row.
So, the total number of balls that forms the equilateral triangle with rows is:
Let 
and 
be the total number of balls in the first and second arrangements respectively.
Then,
It has been said that there were 11 lesser balls in the second arrangement:
Since, 
multiplying both the sides by 2
Therefore,
So, there were 125 balls at the set.
