Questions on Algebra: Unit Conversion answered by real tutors!

Tutors Answer Your Questions about Reduction-of-unit-multipliers (FREE)

Question 801507: The wheels on a certain bicycle have a radius of 13.2 inches. Suppose the wheels roll at 150 revolutions per minute along flat ground without slipping. How fast is the bicycle moving in miles per hour?
The question then hints to convert revolutions to radians per minute, but I am unsure how to do this and any help on what to do to get the answer would be greatly appreciated! Thank you!
Click here to see answer by josgarithmetic(39617)

Question 793048: Kat spends 30 minutes of time partly in listening to her professor and partly in text messaging her close friends. The time she spends on text messaging is 2 times more than what she spends listening to her professor. How many minutes does Kat spend listening to her professor?
Click here to see answer by mananth(16946)

Question 687224: The ratio of the numerator to the denominator of a certain fraction is five to eight. If five is subtracted from the numerator and four is added to the denominator, the new fraction reduces to one-half. What is the original fraction?

A mixture contains
A girl is now

Click here to see answer by mananth(16946)

Question 789015: An open rectangular box is to be made from a piece of cardboard 20 inches wide and 20 inches long by cutting a square from each corner and bending up the sides.
(a) Express the volume V of the box as a function of the size x of the cutout.
Click here to see answer by mananth(16946)

Question 559649: monica drove to work on monday at 40 miles per hour and arrived one minute late. she left the same time on tuesday, drove at 45 miles per hour, and arrived one minute early. how far does monica drive to work?
Click here to see answer by mananth(16946)

Question 1027688: The area of triangle ABC is trisected by two segments parallel to base BC. The longer of these segments is 24 cm. What is the length of base BC? Express your answer in simplest radical form.
Click here to see answer by ikleyn(52781)

Question 657575: A pack of elephants are moving at 6 mph. One gets left behind. It chased at a rate of 10 mph and caught up in 5 minutes. Howlong in hours did it run to catch up? How far did the lone elephant run?
Click here to see answer by greenestamps(13200)

Question 559646: a car radiator has a capacity of 16 quartz and is filled with a 25% antifreeze solution. how much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution?
Click here to see answer by mananth(16946)

Question 1206963: 2tan(x)sin(x)+2sin(x)=tan(x)+1. x is has to be from 0 to 360 inclusive.
Solve for all values of x
Click here to see answer by ikleyn(52781)

Question 1207935: How to convert 42.27 lb-s^1/ft^-1 to hp? I know that 550 lb-ft/s is equal to 1 hp but I do not know how to continue solving it since there are negative exponents in the given problem and the ft and s are switched. Thank you so much!
Click here to see answer by ikleyn(52781)

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