Solution A is 2.40M. 20mLs of solution A is transferred to a 250mL volumetric flask and diliuted to volume with water. What is the concentration of the diluted solution?
What is (-2)^2 What is (-2)^3
*simplifying rational expressions a. 6x+12/4-x b. 3x^2/12-2x
traveling fromchicago to kansas city is a 540 mile trip. A small plane, facing a headwind (going against the wind), took 9 hours to get to kansas city. on the return trip to chicago the plane had a tailwind ( going with the wind) and the trip took only 6 hours. What was the av...
A 40 inch board is cut into two pieces so that the shorter piece is two-thirds of the length of the longer piece. What are the lengths of the two cut pieces?
A: 7x+7y=-77 B: 20x-5y=-35
In a right triangle, the middle angle is 12 more than twice the smallest angle. What are the measures of the smallest and middle angles?
jenny's company has two photocopying machines, one of which is older and slower than the other. In fact, the newer machine can put out four-thirds as many copies as the older machine in the same amount of time. If, while running at the same time, together they produce 560 ...
Roberto and Luisa Barron Lopez each work full time jobs, and Luisa's mother, Carmena, collects a monthly pension of $628. Between the three of them, their total household income is $4238 each month. If Luisa earns $1772, how much does Roberto earn each month?