A nurse mixes 60cc of a 50% saline solution with a 30% saline solution to produce a 35% saline solution. How much of the 30% solution should he use?

Consider this system of linear equations: y - x = - 13 -4x + 3y = - 51 The solution of the system of equations is A. (112/5, 47/5) B. (-12, 1) C. (-12, 1) D. (-12, - 1) E. (12, - 1)

The formula P = 4S gives the perimeter P of a square with side length S. How much greater is the perimeter of a square with a side length of 5 1/2 inches then a square with a length of 5 inches.

How to figure out Composite figures

What is 54% of 76.8 estimated

Which numbers round to 3,100 when rounded to the nearest hundred

What is number pattern

A triangle has sides with lengths of 60 yards, 63 yards, and 87 yards. Is it a right triangle? Yes or No

The squirrel stored seven more than three times as many nuts as the chipmunk. The chipmunk stored x acorns. Write an expression that shows how many acorns the squirrel stored.

The same sequence may be defined in three ways: 1) f (x) = 6x + 5 for x = {1, 2, 3, ... }, 2) a1 = 11 and an + 1 = an + 6 for n = {1, 2, 3, ... } and 3) an = 11 + 6 (n - 1) for n = {1, 2, 3, ... }.

A cell phone plan has a monthly cost that is shown in the table below. What is the correct statement regarding the average rate of change during the 40-minute time of talk?