What quantity of a 40% acid solution must be mixed with a 10% solution to produce 300 mL of a 30% solution?
What will be an ideal response?What will be an ideal response?
200 mL
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Solve the problem.Bill kept track of the number of hours he spent exercising each week. The results for four months are shown below. Find the average number of hours Bill spent exercising per week. Round your answer to two decimal places. 
A. 8.70 B. 8.22 C. 7.78 D. 8.45
Solve.10,500 college students were asked to name their favorite sport. Of this group, 
said basketball, 
said soccer, 
said baseball, 
said they had no favorite sport, and the remainder said volleyball. How many named each sport? 
A. Basketball: 3,500 Soccer: 2,100 Baseball: 1,800 Volleyball: 2,575 None: 525 B. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,635 None: 515 C. Basketball: 3,500 Soccer: 2,100 Baseball: 1,750 Volleyball: 2,625 None: 525 D. Basketball: 3,500 Soccer: 2,050 Baseball: 1,750 Volleyball: 2,675 None: 525
Solve the system of equations by graphing.
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Please enter your answer as two ordered pairs in the form 
. The equations must be separated by a comma.
What will be an ideal response?
x? = x(0.02 ? 0.0002x ? 0.0006y) , y? = y (0.01? 0.0007x ? 0.0001y)
What will be an ideal response?