Answer:
4x-5y=40
comparing with y=MX+C (equation of a straight line)
we have,
-5y= -4x+40
divide through by. -5
we have,
y= 4/5X - 40/5
therefore,
y= 4/5X - 8
Hence, 4/5 is the slope while -8 is the y-intercept
.95 as a fraction would be 95/100
In simplest form this would be 19/20
To add 13% vat we can multiply by (100%+13%) = 113% = 1.13
To remove 13% vat divide by 1.13
339 / 1.13 = 300 the discounted price.
The amount of discount = 400 - 300 = 100
Discount rate = 100 / 400 = 1/4 = 25%
