How do you work this out ?
10m to 2km 10g to 5000kg 40p to £4 ?
If you can show me the working pls. thank you.
2006-09-30 20:56:03 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Two steps.
1.)
Simply write both in the same units (of the first amount listed),
so instead of
10m to 2km 10g to 5000kg 40p to £4 you must firstly write:
10m to 2'000m 10g to 5'000'000g 40p to 400p
2.) Then divide both numbers by the first one.
e.g. for 10m to 2'000m divide both by 10m and you get
1 to 200 (10m / 10m ti 2'000m / 10 m).
In your case, the answers are:
1 to 200, 1 to 500'000 and 1 to 10
Does this help?
2006-09-30 21:08:42 · answer #1 · answered by Anonymous · 0⤊ 0⤋
10m to 2km is the same as 10m/20km or 10m/20000m and if cancel out the units and simply you will get a ratio of 1/2000 or 1:2000 you can do the same thing with 10g to 5000kg and 40p to £4.
2006-10-01 04:12:10 · answer #2 · answered by Dennis T 2 · 0⤊ 0⤋
10m to 2km =
There are 1000 meters in 1km, so 2km equals 2000 meters.
Divide the greater value by the smaller.
2000m ÷ 10m = 200
Then the Answer would be 1:200
10g to 5000kg
There are 1000g in 1 kg, so 5000 kg equals 5,000,000g.
Divide the greater value by the smaller.
5,000,000g ÷ 1,000g = 5000
The answer is 1:5000
40p to £4
There are 100p in £1, so £4 equals 400p.
Divide the greater value by the smaller.
400 ÷ 40 = 10
Then the answer would be 1:10
2006-10-01 04:19:33 · answer #3 · answered by junaidi71 6 · 0⤊ 0⤋
to find ratios
first change the given problem items in same units
and then divied them in which one should turn to 1
ex 10m:2km
or 10 m : 2000 m
or 1:200 m (both sides divided by 10 m
ex 10g:5000kg
or 10g:5 000 000 g
or 1g : 500 000g etc
TRY REMAINING BY YOUR OWN FOR PRACTICE
2006-10-01 06:35:58 · answer #4 · answered by c2 brahmin 2 · 0⤊ 0⤋
Write in the same units.
Divide by the greatest common divisor.
2006-10-01 04:26:14 · answer #5 · answered by baskaran r 2 · 0⤊ 0⤋