2. a chemist wants to make 4 liters of a 7% acid solution by mixing a 10% acid solution and a 4% acid solution. how many liters of each solution should the chemist use? write your answer as a complete sentence be sure to: (a) define your variable and expressions for the quantities. (b) write an equation that models the problem. (c) solve the equation. (d) state the answer in a complete sentence.

What is the rotational symmetry of a wheel

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

At the beginning of the day, stock xyz opened at $6.12. at the end of the day, it closed at $6.88. what is the rate of change of stock xyz? a. 1.17% b. 11.0% c. 12.4% d. 81.5%