5353 minutes = 89.22 hours
Maybe the figures should be 53 and 20??
Let's let Billy = A
The formula to use for work problems is
Time = (A*B) / (A+B)
53 = ( (A +20)* A) / (A +20 + A) )
53 = ( A^2 + 20A ) / (2A + 20)
A^2 + 20A -106A -1060
A^2 -86A -1060
A = 96.935
Bobby Mows in 116.935 minutes
The answer to this depends on the angle at which they intersect. If it intersects<span> the cylinder perpendicular to the axis then a circle is formed. </span><span>If the plane intersects the cylinder at an angle, it will form an ellipse. This will be true until the plan is parallel with the axis of the cylinder. At that point, the surface will become a rectangle.</span>
The second and the third one are similar.
29. B
30. C
31. 2 cups
32. 1.5 times
33. <span>Because milli means 1/1000 of a meter, centi means 1/100 of a meter while kilo </span><span>means 1000 meters</span>
34. 16 cups =1 gal
16x2= 32
32 cups
Your answer is A.
5.3 is less than or equal to 5.3
0 is less then or equal to 5.3
and -8.59 is less then or equal to 5.3
so a is the only answer that is higher than 5.3
