A boat's crew rowed 20 miles downstream, with the current, in 2 hours. The return trip upstream, against the[..]

A motel clerk counts his $1 and $10 bills at the end of a day. He finds that he has a total of 61 bills having a[..]

If a plane can travel 470 miles per hour with the wind and 410 miles per hour against the wind, find the speed of[..]

At the beginning of a walk, Roberto and Juanita are 6.6 miles apart. If they leave at the same time and walk in the[..]

If x units of a product cost C dollars to manufacture and earn revenue of R dollars, the value of x where the[..]

In a mixture of wine and cider, 1/2 of the whole plus 25 gallons was wine, and 1/3 of the whole minus 5 gallons was[..]

mary is making her everyday cleaner it has 25% bleach,and 20% water,what is the mixture for 250ml at 15% bleach

If f(x) = 1-4x and g(x) = x2-1, solve the following equatios, leaving your answers in surd form. (a)[..]

find the equation of the line passing through (a.0),(0,b) also prove that x/a+y/b=1 hint: "a" and "b" represent the[..]

The width of a rectangle is fixed at 23 cm. What length will make the perimeter greater than 92 cm? The length[..]