HomeIf anyone's good at maths. (Yeah, I'm desperate.)
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If anyone's good at maths. (Yeah, I'm desperate.)
by Single H Thu Jan 12, 2012 6:03 am
Using Direct Proportion
1) James went on holiday to America. He changed £320 into dollars. The exchange rate was £1 = $1.60. Work out how many dollars James got.
2) Jasmin bought an MP3 player in America for $130, the exchange rate was £1 = $1.64. Work out the cost of the MP3 player in pounds correct to the nearest penny.
3) The cost of material is directly proportional to it's length. 1.5 m of material costs £9.60. How much will 5 m of material cost?
Using Inverse Proportion
1) It takes 3 men 4 days to cut a hedge.
a) How long would it take 1 man to complete the job?
Work out how long it will take to cut the same hedge if there are.
b) Two men.
c) Six men
2) It takes 8 cleaners 4 hours to clean a school.
a) How long would it take 1 cleaner to clean the school?
Work out how long it would take to clean the same school if there were.
b) 16 cleaners
c) 4 cleaners
d) 2 cleaners
3) A factory uses 5 machines to complete a job in 12 hours. How long would it take to complete the job if there were:
a) 4 machines
b) 6 machines
4) It takes 4 builders 6 days to build a wall. How long will it take:
a) 2 builders.
b) 3 builders.
c) 6 builders.
d) 12 builders.
1) James went on holiday to America. He changed £320 into dollars. The exchange rate was £1 = $1.60. Work out how many dollars James got.
2) Jasmin bought an MP3 player in America for $130, the exchange rate was £1 = $1.64. Work out the cost of the MP3 player in pounds correct to the nearest penny.
3) The cost of material is directly proportional to it's length. 1.5 m of material costs £9.60. How much will 5 m of material cost?
Using Inverse Proportion
1) It takes 3 men 4 days to cut a hedge.
a) How long would it take 1 man to complete the job?
Work out how long it will take to cut the same hedge if there are.
b) Two men.
c) Six men
2) It takes 8 cleaners 4 hours to clean a school.
a) How long would it take 1 cleaner to clean the school?
Work out how long it would take to clean the same school if there were.
b) 16 cleaners
c) 4 cleaners
d) 2 cleaners
3) A factory uses 5 machines to complete a job in 12 hours. How long would it take to complete the job if there were:
a) 4 machines
b) 6 machines
4) It takes 4 builders 6 days to build a wall. How long will it take:
a) 2 builders.
b) 3 builders.
c) 6 builders.
d) 12 builders.
Single H- I'm on a horse
- Posts : 96
Join date : 2011-12-30
Age : 27
Location : United Kingdom -
Re: If anyone's good at maths. (Yeah, I'm desperate.)
by Guest Thu Jan 12, 2012 6:44 am
I'd help if math wasn't such a bitch.
Guest- Guest
Re: If anyone's good at maths. (Yeah, I'm desperate.)
by Kane Thu Jan 12, 2012 9:12 pm
What the fuck, Jake? Seriously? You can't do elementary school math? I am disappoint... Anyway, idk if you want the steps, but I'm too lazy to write the steps, so imma give you the direct answers. If you need steps, I'll try to do them later, I gotta study physics and Arabic.
Single H wrote:Using Direct Proportion
1) James went on holiday to America. He changed £320 into dollars. The exchange rate was £1 = $1.60. Work out how many dollars James got.
512$
2) Jasmin bought an MP3 player in America for $130, the exchange rate was £1 = $1.64. Work out the cost of the MP3 player in pounds correct to the nearest penny.
idk how much a penny is off a pound, so Imma give you the first three numbers after the dot (yea, we call it dot. Decimele is too unmathy of a word) 79.268 If 100pennies are 1 pound then it would be 79.27 etc
3) The cost of material is directly proportional to it's length. 1.5 m of material costs £9.60. How much will 5 m of material cost?
32
Using Inverse Proportion
1) It takes 3 men 4 days to cut a hedge.
a) How long would it take 1 man to complete the job?
12 days
Work out how long it will take to cut the same hedge if there are.
b) Two men.
6 days
c) Six men
2 days
2) It takes 8 cleaners 4 hours to clean a school.
a) How long would it take 1 cleaner to clean the school?
32 hours
Work out how long it would take to clean the same school if there were.
b) 16 cleaners
2 hours
c) 4 cleaners
8 hours
d) 2 cleaners
16 hours
3) A factory uses 5 machines to complete a job in 12 hours. How long would it take to complete the job if there were:
a) 4 machines
15 hours
b) 6 machines
10 hours
4) It takes 4 builders 6 days to build a wall. How long will it take:
a) 2 builders.
12 days
b) 3 builders.
8 days
c) 6 builders.
4 days
d) 12 builders.
2 days
Kane- Giant Squid
- Posts : 42
Join date : 2011-12-31
Re: If anyone's good at maths. (Yeah, I'm desperate.)
by Guest Thu Jan 12, 2012 9:32 pm
This is like the time I helped B00Bz with his science homework.
Guest- Guest
Re: If anyone's good at maths. (Yeah, I'm desperate.)
by Single H Fri Jan 13, 2012 2:49 am
Nawakhtha wrote:What the fuck, Jake? Seriously? You can't do elementary school math? I am disappoint... Anyway, idk if you want the steps, but I'm too lazy to write the steps, so imma give you the direct answers. If you need steps, I'll try to do them later, I gotta study physics and Arabic.Single H wrote:Using Direct Proportion
1) James went on holiday to America. He changed £320 into dollars. The exchange rate was £1 = $1.60. Work out how many dollars James got.
512$
2) Jasmin bought an MP3 player in America for $130, the exchange rate was £1 = $1.64. Work out the cost of the MP3 player in pounds correct to the nearest penny.
idk how much a penny is off a pound, so Imma give you the first three numbers after the dot (yea, we call it dot. Decimele is too unmathy of a word) 79.268 If 100pennies are 1 pound then it would be 79.27 etc
3) The cost of material is directly proportional to it's length. 1.5 m of material costs £9.60. How much will 5 m of material cost?
32
Using Inverse Proportion
1) It takes 3 men 4 days to cut a hedge.
a) How long would it take 1 man to complete the job?
12 days
Work out how long it will take to cut the same hedge if there are.
b) Two men.
6 days
c) Six men
2 days
2) It takes 8 cleaners 4 hours to clean a school.
a) How long would it take 1 cleaner to clean the school?
32 hours
Work out how long it would take to clean the same school if there were.
b) 16 cleaners
2 hours
c) 4 cleaners
8 hours
d) 2 cleaners
16 hours
3) A factory uses 5 machines to complete a job in 12 hours. How long would it take to complete the job if there were:
a) 4 machines
15 hours
b) 6 machines
10 hours
4) It takes 4 builders 6 days to build a wall. How long will it take:
a) 2 builders.
12 days
b) 3 builders.
8 days
c) 6 builders.
4 days
d) 12 builders.
2 days
Amg, Matt I love you. I seriously owe you one.
Single H- I'm on a horse
- Posts : 96
Join date : 2011-12-30
Age : 27
Location : United Kingdom -
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