2:00 PM
xy=-50 x+y=2, so y=2-x Substitute y=2-x to xy=-50 x(2-x)=-50 2x-x2=-50 -x2+2x+50=0 x2-2x-50=0 cannot be factorised. So use the abc formula ax2+bx+c=0 a=1, b=-2, c=-50, pm=plus minus, v=square root x=[-b pm v(b2-4ac)]/2a x=[2 pm v(4-4.1.-50)]/2.1 x=[2 pm v(204)]/2 x= [2 pm 2v(51)]/2 x=1 pm v(51) so the answer is 1+v51 and 1-v51 or in decimal (approx): 8.1414 and -6.1414
Time = Distance/Speed = 250km/120kph = 2.0833... hours or 2 hours and 5 minutes.
Just convert the 2 hours to minutes. Then you have the ratio:24 minutes : (the equivalent of 2 hours) Which, if you wish, you can then simplify.
30 minutes is 1/4 of 2 hours
11 am to 11 pm is 12 hours and then add 2 more hours to get 14
2 hours
20
11- 9 = 2, so 2 hours.
2 hours
7 and a half hours
2 hours.
There are 4 hours from 10 am to 2 pm.
2 hours
South Africa is 7 hours ahead of eastern time and 10 hours ahead of pacific time. So, if it is 2pm eastern time, it would be 9pm in South Africa. Similarly, if it is 11am pacific time, it would also be 9pm in South Africa.
9 am to 12 pm: 3 hours 12 pm to 2:30 pm: 2 1/2 hours 3 + 2 1/2 = 5 1/2 hours. So there are 5 1/2 hours between 9 am and 2:30 pm.
There are 2+12k hours where k is an integer.