the perimeter of a rectangle floor is 50 ft. find the dimensions of the floor if the length is 4 times the width.

Two different scholarships are to be given to two students at a local High School. If there are 9 students in the[..]

A motorboat takes 5 hours to travel 100 mi going upstream. The return trip takes 2[..]

A certain radioactive isotope decays at a rate of .15% annually. Determine the half-life of this isotope to the[..]

Carbon-14 is a radioactive substance with a half-life of approximately 5545 years and is frequently used to date[..]

one number is 5 less than a second number. twice the second number is 8 less than 5 times the first. find the two[..]

What is the present value of $3,500 per year for 8 years discounted back to the present at 9 percent?

Pure acid is to be added to a 10% acid solution to obtain 90L of 75% solution. What amounts of each should be used?

kevin and randy muise have a jar containing 78 coins, all of which are either quarters or nickels. the total value[..]

the floor of a rectangular cage has a length 4 feet greater than the width ,w. james will increase both dimensions[..]