Problem 9
The Fan Cost Index (FCI) represents the cost of four average-price tickets, four small soft drinks, two small beers, four hougs, parking for one car, two game programs, and two souvenir caps to a sporting event. Use the concept of FCI For the \(2008-2009\) season, the FCI prices for the National Hockey League and the National Basketball Association totaled 580.16 dollar. The hockey FCI was 3.70 dollarless than that of basketball. What were the FCIs for these sports?
Problem 15
If 1 pound of turkey costs 2.29 dollar, give an expression for the cost of \(x\) pounds.
Problem 17
Solve system of equations by graphing. If the system is inconsistent or the equations are dependent, say so. \(x+y=4\) \(y-x=4\)
Problem 19
Pure acid is to be added to a \(10 \%\) acid solution to obtain \(54 \mathrm{L}\) of a \(20 \%\) acid solution. What amounts of each should be used?
Problem 25
Solve each system by the elimination method. $$ \begin{array}{c} {5 x-2 y=3} \\ {10 x-4 y=5} \end{array} $$
Problem 25
Solve system of equations by graphing. If the system is inconsistent or the equations are dependent, say so. \(2 x-y=6\) \(4 x-2 y=8\)
Problem 27
Solve each system by the elimination method. $$ \begin{aligned} 6 x-2 y &=-22 \\ -3 x+4 y &=17 \end{aligned} $$
Problem 30
Solve each system by the elimination method. $$ \begin{aligned} &3 x=27+2 y\\\ &x-\frac{7}{2} y=-25 \end{aligned} $$
Problem 32
The top-grossing tour on the North American concert circuit for 2009 was U2, followed in second place by Bruce Springsteen and the E Street Band. Together, they took in 217.5 million dollar from ticket sales. If Springsteen took in 28.5 million dollar less than U2, how much did each band generate? (IMAGE CAN'T COPY)
Problem 33
Solve each system by the elimination method. $$ \begin{aligned} &2.4 x+1.7 y=7.6\\\ &1.2 x-0.5 y=9.2 \end{aligned} $$