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:
4
Step-by-step explanation:
HK is double of HW, so:
Then solve. Divide both sides by 2.
21=x²+5
16=x²
4=x
I hope this helps and good luck on the rest of your HW
Answer:
I think it is 14,-6 but wait for another answer to confirm
Step-by-step explanation:
Manuel needs 20 liters of the 8% and 5 liters of 20% mixtures to be mixed so as to get 30 liters of a mixture of water and 10% lemon juice.
Let x represent the amount of 8% lemon juice in liters and y represent the amount of 20% lemon juice in liters.
Since Manuel wants to produce a 30 liters mixture from 8% lemon juice and 20% lemon juice, hence:
x + y = 30 (1)
Also, Manuel wants 30 liters of a mixture of water and 10% lemon juice, hence:
8% of x + 20% of y = 10% of 30 liters
0.08x + 0.2y = 3 (2)
Solving equation 1 and 2 simultaneously; multiply equation 1 by 0.2 and subtract equation 2 from the result:
0.12x = 3
x = 25 liters
x + y = 30
25 + y = 30
y = 5 liters
Manuel needs 20 liters of the 8% and 5 liters of 20% mixture
Find out more at: brainly.com/question/15024774
Answer:
2
Step-by-step explanation:
I gotcha.
so.. you have to get your hands.
these are your fingers down below
| | | | / \ | | | |
so you count 1...2..
then that’s your answer!!