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21 answers

Hi Gizmo,

These are all products of the relationship of various times to one hour or 60 minutes. You can prove this by:

.25y=15mins
y= 15mins/.25
y=60mins

Therefore, putting the 60 where it belongs and the new unknown value becoming the y, the equation for your question is:

y(60)=40
y=40/60

40 minutes divided by the 60 will yield the ratio in fractional form:
40/60 or 2/3

Change it to decimal:
2/3=.6666666 repeating

and since all formulas show two decimal places, round to .67.

2006-11-07 07:50:36 · answer #1 · answered by gare 5 · 1 0

TRUST ME PLEASE!!!!!!!!!!!!!!!!!!!!!!!
SO MUCH SIMPLER!!!!!!!!!!!!!
to get the digits after the decimal
mult the mins by 2
then subtract 1/3 of the original minutes i.e.

15min x 2 = 30
- 5 = 25 which becomes .25 after the decimal point
30 min x 2 = 60
-10 = 50 becoming .50
45min x 2 = 90
-15 = 75 becoming .75
40 min x 2 =80
-13.3 = 66.7 becoming .67

2006-11-07 07:56:41 · answer #2 · answered by britrob20 3 · 0 0

well, it sounds like 1.0 will be 60mins, if .50 = 30mins, and etc. 40 mins is going to be a ratio of 40/60 which is 2/3. That is a decimal number that never ends, it is 0.6666666..... etc, but 2/3 is an exact number.

2006-11-07 07:52:57 · answer #3 · answered by ScotOS 2 · 0 0

How about 2/3 of an hour or .667.

2006-11-07 07:51:34 · answer #4 · answered by Anonymous · 1 0

according to above:

60 min (1 hr ) = 1.00
40 mins (2/3 hour)= 2/3 of 1.00 = 0.6666666666 (0.67)

2006-11-07 08:05:40 · answer #5 · answered by hakhadbai 2 · 0 0

40/60 equals 2/3 equals 0.666 recurring or 0.67

2006-11-07 07:50:55 · answer #6 · answered by ladybird 3 · 1 0

Zero

2006-11-07 07:50:24 · answer #7 · answered by Dashawna S 1 · 1 1

The answer is 0.6666664

1/60 = 0.0166666

0.0166666 * 40 = 0.666664

2006-11-07 07:52:15 · answer #8 · answered by Stuart J 2 · 0 1

.67

2006-11-07 07:57:52 · answer #9 · answered by Matthew S. 2 · 0 0

.67

2006-11-07 07:53:07 · answer #10 · answered by dinan s 2 · 0 0

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