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.