Home Mathematics Decrease £40 by 15% Decrease £40 by 15%Mathematics CoryintheswampOctober 23, 20215 CommentsDecrease £40 by 15%

To increase 30 pounds by 15%, multiply 30 by 1.15:[tex]30\times1.15=34.50\ pounds.[/tex]To decrease 40 pounds by 15%, multiply 40 by 0.85:[tex]40\times0.85=34\ pounds.[/tex]Reply

So 10 % of 40 is 4 5% of 40 is 2 so 15% is 6then you have to do 40-6 and then you get the answer of 34Reply

To increase 30 pounds by 15%, multiply 30 by 1.15:

[tex]30\times1.15=34.50\ pounds.[/tex]

To decrease 40 pounds by 15%, multiply 40 by 0.85:

[tex]40\times0.85=34\ pounds.[/tex]

£34

Step-by-step explanation:

15% of 40 is 6

40 - 6 is 34

10% is 4

5% is 2

4 plus 2 is 6

40-6 is 34

Answer equals 34

So 10 % of 40 is 4

5% of 40 is 2

so 15% is 6

then you have to do 40-6

and then you get the answer of 34

The first one is £25.50 and the second is £34.