Answer:
Step-by-step explanation:
you take 30% and 10% and turn them into decimal like so:
30/100=0.3
10/100=0.1
400.00(0.3)=120.00
120(0.1)=12
Intercepts are the x intercept and the y intercept.
the x intercept is when y=0, in this case, x=-3
the y intercept is when x=0, in this case, y=-6/5
so the x intercept is at (-3,0) and the y intercept is at (0, -6/5)
Answer:
um i cant see the answer choices
Step-by-step explanation:
Answer:
1. The value of
will become ![\frac{mx-b}{x}](https://tex.z-dn.net/?f=%5Cfrac%7Bmx-b%7D%7Bx%7D)
2. The value of
will become
and the value of
from ![x](https://tex.z-dn.net/?f=x)
Step-by-step explanation:
Given ,
- <em>The price of each baseball is $m dollars</em>
- <em>The amount he already spent on other things is $b dollars</em>
- <em>Let's the the total amount spent by Robert be $c. </em>Thus ,
![c=m*x+b\\c=mx+b](https://tex.z-dn.net/?f=c%3Dm%2Ax%2Bb%5C%5Cc%3Dmx%2Bb)
According to the question , the given amount for spending totally is a constant = $c .
Thus ,
1<em><u>. If the expenditure on other equipment doubles , and payment remains constant ,</u></em>
![c=m_1*x+2*b\\c=m_1x+2b\\mx+b=m_1x+2b\\m=\frac{mx-b}{x}](https://tex.z-dn.net/?f=c%3Dm_1%2Ax%2B2%2Ab%5C%5Cc%3Dm_1x%2B2b%5C%5Cmx%2Bb%3Dm_1x%2B2b%5C%5Cm%3D%5Cfrac%7Bmx-b%7D%7Bx%7D)
This is the expression of price of baseball.
2.<em><u> If the cost of baseball , m dollars is tripled, then value of b :</u></em>
![c=m*x+b\\m*x+b=m*3*x+b_1\\b_1=b-2x](https://tex.z-dn.net/?f=c%3Dm%2Ax%2Bb%5C%5Cm%2Ax%2Bb%3Dm%2A3%2Ax%2Bb_1%5C%5Cb_1%3Db-2x)
This is the new value of the price of other equipments
You need to find the singular cost for 1 download.
You divide the total cost of all the songs by the amount of songs.
$10.32 ÷ 8 = $1.29
You pay $1.29 per song.
1.29 : 1