Gabe Amodeo, a nuclear physicist, needs 60liters of a 40%acid solution. He currently has a 30 % solution and a 60% solution. How many liters of each does he need to make the needed 60 liters of 40 % acid solution?

A lithium atom has positively charged protons and negatively charged electrons. The sum of the charges represents the charge of the lithium atom. Find the charge of the atom

Simplify 8 (x + 3) - 2x

Max charges $3.50 per hour when he mows lawns, plus $6.00 for transportation expenses. Which function rule represents the amount y, Max charges to mow lawns for x, hours? I think it would be y = 3.50x + 6.00 Can someone confirm it?

In the 2008 election there were 28 "blue" states and 22 "red" states as fractions, in the lowest terms, of the total number of states and also as decimals

What is the median of 1,4,6,5,6,99,101

What is the reference angle of - 3 radians? Explain.

The numbers of student at valley view middle school increaded by 10% to 770 total student how many student were enrolled at vally view middle school before th increace

Do you add the discount before or after the tax

What is eight and three thirds minus eighteen halves

The expression below is the factorization of what trinominal (7x+5) (2x-3)