SOLUTION: Mr. Andreas has a video rental business. The table shows how much he charges to rent videos. Write an equation that could be used to find the cost of renting x videos. Explain how

Algebra ->  Equations -> SOLUTION: Mr. Andreas has a video rental business. The table shows how much he charges to rent videos. Write an equation that could be used to find the cost of renting x videos. Explain how       Log On


   

Question 164584This question is from textbook
: Mr. Andreas has a video rental business. The table shows how much he charges to rent videos. Write an equation that could be used to find the cost of renting x videos. Explain how you found your equation. Use your equation to find the cost of renting 10 videos.
Videos / Price
1 - $4.00
2 - $6.00
3 - $8.00
4 - $10.00
5 - $12.00
6 - $14.00 This question is from textbook

Answer by jojo14344(1513) About Me  (Show Source):
You can put this solution on YOUR website!

Your BASIC EQN: highlight%28Y%5Bx%5D=cost%2B2%28x-1%29%29
Where:
Y=Total_Charges
x=Number_of_Videos
cost=4.00, basic cost per 1 video
Let's prove our BASIC EQN:
1 video=$4.00
Y%5B1%5D=4.00%2B2%281-1%29
Y%5B1%5D=4.00%2B0=4.00, correct!
2 videos = $6.00
Y%5B2%5D=4.00%2B2%282-1%29=4.00%2B2%281%29=4.00%2B2=6.00, correct!
3 videos = $8.00
Y%5B3%5D=4.00%2B2%283-1%29=4.00%2B2%282%29=4.00%2B4=8.00. correct!
4 videos=$10.00
Y%5B4%5D=4.00%2B2%284-1%29=4.00%2B2%283%29=4.00%2B6=10.00, correct!
5 videos=$12.00
Y%5B5%5D=4.00%2B2%285-1%29=4.00%2B2%284%29=4.00%2B8=12.00, correct!
See the sequence, our eqn is good. Try the rest.
Now for 10 videos=$????, let's see:
Y%5B10%5D=4.00%2B2%2810-1%29=4.00%2B2%289%29=4.00%2B18
highlight%28Y%5B10%5D=22.00%29
thank you,
Jojo