Answer:
x=-5,x=+5
Step-by-step explanation:
The question says 15=|3x|
So to solve this question we will have to eliminate the || from 3x and to do so we will transfer it to 15... when it gets to 15 it will be + or - 15
So let's solve
Starting from +15=3x
Make x the subject of formula
x=+5
Let's move to the -15=3x
Make x the subject of formula
x=-5
Therefore x is either+5 or -5
That's the final answer for the given question...
I believe this will help you to understand it better
A good math calculator is called math-way it shows step by step answers. I hope this helps
Answer:
x=-15.2
Step-by-step explanation:
The sum is ![p^3 -8p^2-17p](https://tex.z-dn.net/?f=p%5E3%20-8p%5E2-17p)
<em><u>Solution:</u></em>
Given that we have to find the sum
<em><u>Given expression is:</u></em>
![(-3p^3+5p^3-2p) + (-p^3-8p^2-15p)](https://tex.z-dn.net/?f=%28-3p%5E3%2B5p%5E3-2p%29%20%2B%20%28-p%5E3-8p%5E2-15p%29)
We have to add both the expressions
Addition of two polynomials involves combining like terms present in the two polynomials
Like terms are the terms having same variable and same exponent
From given expression,
![(-3p^3+5p^3-2p) + (-p^3-8p^2-15p)](https://tex.z-dn.net/?f=%28-3p%5E3%2B5p%5E3-2p%29%20%2B%20%28-p%5E3-8p%5E2-15p%29)
Remove the parenthesis and add
![-3p^3+5p^3-2p-p^3-8p^2-15p](https://tex.z-dn.net/?f=-3p%5E3%2B5p%5E3-2p-p%5E3-8p%5E2-15p)
Combine the like terms
![-3p^3+5p^3-p^3-8p^2-2p-15p](https://tex.z-dn.net/?f=-3p%5E3%2B5p%5E3-p%5E3-8p%5E2-2p-15p)
Add the like terms
![p^3 -8p^2-17p](https://tex.z-dn.net/?f=p%5E3%20-8p%5E2-17p)
Thus the sum is ![p^3 -8p^2-17p](https://tex.z-dn.net/?f=p%5E3%20-8p%5E2-17p)
Answer:
Reserved seats tickets = $20
General admission tickets = $12
Step-by-step explanation:
From the above question:
Let us represent
Reserved seats tickets = R
General admission tickets = G
Reserved seat tickets for a concert cost $8 more than general admission tickets. Hence,
R = G + 8
Five reserved seat tickets and 3 general admission tickets cost at total of $136. Hence,
5R + 3G = 136
So, we substitute G + 8 for R in the equation above
5(G + 8) + 3G = 136
5G + 40 + 3G = 136
5G + 3G = 136 - 40
8G = 96
Divide both sides by 8
8G/8 = 96/8
G = 12
Therefore the cost of one General admission ticket = $12
Since R = G + 8
R = $12 + $8
R = $20
Therefore, the cost of the reserved seats tickets = $20