The diagram shows the floor of a warehouse. The manager needs to paint the floor.
15.6 m
One tin of paint costs £16.85 and covers 12 m2 of floor.
The manager has a budget of £420.
He will get a discount of 25% off the cost of the paint.
Has the manager got enough money to buy the paint for the floor?
You must show all your working.

there is no points to select.

step-by-step explanation:

the answer, i believe is y-8=1(x+4)

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16