How many milliliters of a 70% acid solution should be added to 12 milliliters of a 15% acid solution to obtain a solution that is 60% acid?
How many milliliters of a 70% acid solution should be added to 12 milliliters of a 15% acid solution to obtain a solution that is 60% acid?
four more than three times a number is 49. find the number
If you had a box that was 8 cm by 5 cm by 2 cm and was painted blue and cut into 80 cubes, each with dimensions of 1 cm. How many of these cubes are painted blue on exactly one face? ...
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Quarterly deposits of $500 are made for 20 years into annuity that pays 8% compunded quarterly.
Mr. Boggs- b mr. Hamilton- 15(b+2) Ms.Simpson- 15 Mrs.Walton- 2b-9
Jan's commission for February was $15 more than one half her commission for March. her total commission for both months was $633. find her commission for each month.
Tom is 4 more than twice Andrews age. Sara is 8 less than 5 times Andrews age. Andrews age is represented by x. If Tom and Sara are twins, write an equation to solve to determine Andrews ag
Graph a line with the indicated slope and y-intercept. y=-6 and y-intercept (0,9)
a pilot can fly a plane 2080 miles with the wind in the same time as she can fly 1920 miles against the wind. If the speed of the wind is 20 mph what is the speed of the airplane in still air&nbs...
Please help something is wrong with this problem and I can't figure it out.
An employment agency specializing in temporary construction help pays heavy equipment operators $123 per day and general laborer a $98 per day. If forty people were hired and the payroll was $4470,...
Sally and Kim complete a job together in 2 hours. Sally working alone completes the same job in 3 hours less than Kim working alone. How long does it take Kim to complete the job?
Dawn is conducting an experiment with a spinner. The spinner has landed on A 4 times, B 7 times, and C 9 times. Based on Dawn's experiment, which is the best prediction for the number of times the...
At a tennis club, a 13,500ft^2 rectangular area is partitioned into three rectangular courts of equal size. A total of 740 feet of fencing is used to enclose the three courts, including the interior...
One number is greater than half of another by 15. If their sum is 48, find the numbers
A number is less than 3/4 of another number if there sum is 9 1/4 what are the numbers