Answered

need help with math's home work

1 - increase 235 by 27%

2 - increase 24g by 9%

3 - decrease 1120 of 13.5%

4 - decrease 0.057 by 55%


sally investment of £450 has gone up by 30%, while susies has gone down by 10% from 650. who has got the highest amont of money

Verified Answer :

HolmesNWatson
  1. The best thing to do is to find out what 1% is. 235/100= 2.35
    As you're looking for 27%, you then multiply 2.3527= 63.45
    As you're increasing it, you've then got to add this to the original amount.
    235+63.45= 298.45

    2. Again, find 1%. 24/100= 0.24
    0.24    9= 2.16
    24+2.16= 26.16

    3. Find 1%. 1120/100= 11.2
    As you're looking for 13.5%, you then multiply this by 13.5
    11.213.5= 151.20
    As you're subtracting, you then take this away from the original number.
    1120-151.20= 968.80

    4. This time, you can find 10%.
    0.057/10= 0.0057
    0.0057    5.5= 0.03135.
    You've then got to subtract this as you're decreasing the number.
    0.057-0.03135= 0.02565.

    Sally's investment is now worth £585. (Find the 30% and add it on) and Susie's investment is now worth £585 (Find the 10% and subtract). They both have the same amount of money.

    Hope this helps :)

Related Questions