A notebook costs £1.60, a pen costs 37p , a pencil costs 21p and a sharpener costs 86p. Remi buys 3 pencils, 2 pens, 3 sharpeners and some notebooks.
He pays with £8 and receives 85p change.
How many notebooks did he buy?

He bought 2 notebooks.

Step-by-step explanation:

Step 1. Find how much he paid

£8 - £0.85 = £7.15

Find how much he paid for the items we know the price and numbers he bought.

3 pencils = 3 * £0.21 = £0.63

2 pens = 2 * £0.37 = £0.74

3 sharpeners = 3 * £0.86 = £2.58

Total of pencils, pens and sharpeners =  £0.63 + £0.74 + £2.58 = £3.95

Subtract this total from what he paid:

£7.15 - £3.95 = £3.20

He paid £3.20 for a number of notebooks that cost £1.60 a piece.

£3.20/£1.60 = 2

He bought 2 notebooks.

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

jeff jeff

step-by-step explanation: