Answer:
15.8 dollars per dvd.
Step-by-step explanation:
<em>Our equation for this problem is:</em>
<em />
<em>v = how much one dvd costs</em>
<em>2v + 3.15 - 1 = 33.75</em>
<em>2v +3.15 =34.75 (added 1 on both sides)</em>
<em>2v = 31.6 (subtracted 3.15 from both sides)</em>
<em>v = 15.6 (divided by 2 on both sides) </em>
Given
Required
Express in terms of and
Express 21 as 7 * 3
Apply law of logarithm
. So, we have:
Rewrite:
y=2/5x+3/5
Use the slope formula to get the slope:
m=4/10
m=2/5
The y intercept is 3/5
The equation is y=2/5x+3/5