A biologist has a 40% solution and a 10% solution of the same plant nutrient. How many cubic centimeters of each solution should be mixed to obtain 25 cc of a 16% solution?

The salt content in caspain sea is. 13 kg for every liter of the water how many kg of salt are in 70 liters

From the numbers 1 through 10 which one of these statements is true A. you are more likely to spin 6 than any other number. B. you are more likely to spin a number greater than 5 than a number less than 5 C.

There are 7 times more boys than girls running track. There are 24 kids on the track. How many are boys

What is he sum or product of 8 times 51

Dan earns £9.10 per hour. How much will he earn for 5 hours work?

7x + 1 = x + 7 whats the answer

How many / dfrac13 / text{ cm} 3 1 cmstart fraction, 1, divided by, 3, end fraction, space, c, m cubes does it take to fill the prism answer?

A doctor's office records the age at which 200 patients were treated for chicken pox. 60% of the patients were treated before age 15. 40% of the patients who were under 15 were female. 20 of the patients were 30 or older.

The length of a rectangle is 3 times it's width. If the perimeter of the rectangle is 144cm. Find it's area

The graphh od y=x^2+6x-7 what is the axis of symmetry