Question

PLEASE ANSWER:

A shop is selling notebooks for £1.50 each.
They have a buy one get one half price offer on.
How many notebooks can be bought for £25?

Answer 1

17 notebooks

Explanation:

I) Let's make an equation to represent the problem first:

y = 1.50(x - 0.5)

II) Solve:

25 = 1.50(x - 0.5) (Substitute y with 25)

12.5 = 0.75x − 0.375 (Divide both sides by 1.50)

12.875 = 0.75x (Add 0.375 to both sides)

17 1/6 = x

III) Round down:

Since you can't buy 17 1/6 notebooks, we need to round down our answer.

So, we can only buy 17 notebooks with £25.