Ive lost my maths book which had all the info to help me in it, and Im really struggling with these _- Ive totally forgotten what to do! Ive managed to do 4 questions but the rest is flying over my head. Help please?
4) The price of a jumper is reduced by 20% to £35. How much did it cost originally?
5) The price of a house is increased by 15% to £120,000. What was the original value of the house?
6)£450 is invested with 12% compound interest per annum, paid every 3 months. How much money will there be after 2 years?
The homeworks due in tomorrow and I need to go to bed soon :( Please help me!
2007-10-07 08:34:45 · 6 answers · asked by foxylilminxdevil 2 in Education & Reference ➔ Homework Help
4) original = 120% of 35 = 42 pounds.
5) 120,000 pounds = 115%
so 120,000/115 = 1% = 1043.4826,
original value was 100% = 104,348.26 pounds.
2007-10-07 08:49:29 · answer #1 · answered by BB 7 · 0⤊ 0⤋
I'm not sure about 4 and 5, however 6 is easy. You take 450 and multiply it by .12 to see how much is paid every 3 months. Take that number and multiply it by 8 for 8 times it would be paid into the account. Take that number and add it to 450. It should be 882, if you find your math book please check.
I think if you take 85% for question 5 you should get your answer. $102,000
2007-10-07 15:47:09 · answer #2 · answered by Shockwave 7 · 0⤊ 0⤋
The jumper is being sold at 80% of its original price
Original Pricex80/100 = 35
Original Price = 35 x100/80
Original Price = £43.75
2007-10-08 07:04:52 · answer #3 · answered by Jean O 4 · 0⤊ 0⤋
Number 4. do everything by 10% , so 10% of £35.00 is £3.50 double it and add it on to £35.00=£42.00
Number 5. Take off 10% £12.000 take off 5% which is half of £12.000=£6.000 , £12.000+£6.000=£18.000 take off £18.000 from £120.000=£102.000
Number 6 bit stumped on this one so it may be wrong so don't tell me off, 12%=£12.00 in every £100.00 so £400.00 would be £12.00 four times=£48.00, odd £50.00 would mean half of £12.00 which is £6.00 add £48.00+£6.00=£54.00 interest + £450.00=£504.00 in the first year.
As far as I know you will now have 12% interest on that years total which is £504.00.
12%=£12.00 in every £100.00 so 5 x £12=£60.00 that leaves £4.00 so 10% of that is 40p, 2% = 8p total £4.48
So total for two years is £504.00 + £60.00 + £4.48 total for two years £568.48.
The compound interest has me confused because I am not sure what it means but if someone can verify my figures that would be great, if the answers are correct tomorrow tell the teacher my name, if they are wrong I have left the country.
Ken
2007-10-07 16:01:08 · answer #4 · answered by Anonymous · 0⤊ 0⤋
5) x = orig price of house
x+ .15(x) = 120,000 (you increased the price by 15%)
1.15x = 120,000 (combine like terms)
x = 120,000/1.15
x = GBP104,347.82
Cheers
2007-10-07 16:01:09 · answer #5 · answered by frnchfries2000 4 · 1⤊ 0⤋
no 4 is £42-00
2007-10-07 16:02:19 · answer #6 · answered by melas 6 · 0⤊ 1⤋