The Coffee Shoppe sells a coffee blend made from two coffees, one costing $3.00/lb and the other costing $2.00/lb. If the blended coffee sells for $2.80/lb, find how much of each coffee is used to obtain the desired blend. (Assume the weight of the blended coffee is 100 lb.)
__________ lb of $3.00/lb coffee
__________ lb of $2.00/lb coffee
80;20
Mathematics
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Find parametric equations for the line described below.The line through the points P(-1, -1, -1) and Q(7, -5, 7)
A. x = t + 8, y = t - 4, z = -1t + 8 B. x = 8t - 1, y = -4t - 1, z = 8t - 1 C. x = t - 8, y = t + 4, z = -1t - 8 D. x = 8t + 1, y = -4t + 1, z = 8t + 1
Mathematics
Multiply.
yz(10x - 6y6 + 2y)
A. 
xyz - 2y7z + 
yz2
B. 
xyz - 6y6 + 2y
C. 
xyz - 2y7z + 
y2z
D. 
xyz - 2y6z + 
y2z
Mathematics
Solve the problem.Jerry Jones buys a $120,000 T-bill at a 5.8% discount for 30 weeks. Find the interest earned on the T-bill. (Assume 52 weeks per year.)
A. $8,030.77 B. $2,007.69 C. $4,416.92 D. $4,015.38
Mathematics
Solve the equation and check your solution.x - 12 = -7
A. x = 19 B. x = 5 C. x = -5 D. x = -19
Mathematics