(x-1)/5 = (4x + 2)/35
lets start off by multiplying each side by 5
(x-1) = 5(4x + 2)/35
then let's multiply both sides by 35
35(x-1) = 5(4x + 2)
now let's distribute the coefficients (5 and 35) into everything in the brackets
35 times x is 35x
35 rimes 1 is 35
5 times 4x is 20x
5 times 2 is 10
(35x - 35) = (20x + 10)
we can add 35 to both sides
35x = 20x + 45
then subtract 20x on both sides
15x = 45
then divide both sides by 15
x = 3
The linear approximation means that you assume the function is linear. So, just do :
f(5) + f'(5) (x-5)
This works out, in this specific case
3 + 4 (- 0.2)
Hope this helps
2/3*(3/8*16)=2/3*(3*2)=2*2=4
<u>Answer:</u>
$593.26
<u>Step-by-step explanation:</u>
We know that the price of the laptop is $2500 and each year its resale value decreases by 25%. It means that 100 - 25 = 75% of the value is retained every year for the resale.
So, the resale value for 1st year =
$1875
for 2nd year =
$1406.25
for 3rd year =
$1054.7
for 4th year =
$791.01
for 5th year =
$593.25
Or we can use the following formula to find its resale value after 5 years:
$593.26