Answer: 
Step-by-step explanation:
Formula to find the price of an item after t years after withe a depreciation rate of r% is
, where P = Initial value of item.
Given: P = $15,000, r= 30%
Then, the value of car after t years will be :

The required general formula for the value of the car t years after its purchase:

Answer: 40
Step-by-step explanation:
3x-10=x+70
3x-x=70+10
2x=80
x=8<u>0</u>
2
x=40
Answer:
1 7/15
Step-by-step explanation:
4/5 = 12/15
2/3 = 10/15
12/15 + 10/15 = 22/15 or 1 7/15
There is no mistake unless you change the thing to the thing
2(4-16)-30
8-32+30
then eyah hope this helps and hope i can get a brainly?
The first car is traveling at 65 miles per hour and the second car is traveling at 62 miles per hour.
Explanation:
390:x=372:(x-3)
372x=390(x-3)
372x=390x-1170
1170=390x-372x
1170/18=18x/18
x=65
x-3= 65-3=62