Solve for the variable.0.5(80) + 0.7x = 0.6(80 + x)
A. x = 40
B. x = 90
C. x = 80
D. x = 70
Answer: C
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Find the first term a1 and the common difference d of the arithmetic sequence.-20, -25, -30, -35, . . .
A. a1 = -5, d = -10 B. a1 = -20, d = -5 C. a1 = -20, d = -15 D. a1 = -5, d = 5
Solve.To trim the edges of a rectangular table cloth, 60 feet of lace are needed. The length of the table cloth is exactly one-half its width. What are the dimensions of the table cloth?
A. length: 20 ft; width: 40 ft B. length: 10 ft; width: 20 ft C. length: 5 ft; width: 10 ft D. length: 20 ft; width: 10 ft
Solve the problem.The liquid portion of a diet is to provide at least 300 calories, 36 units of vitamin A, and 90 units of vitamin C daily. A cup of dietary drink X provides 60 calories, 12 units of vitamin A, and 10 units of vitamin C. A cup of dietary drink Y provides 60 calories, 6 units of vitamin A, and 30 units of vitamin C. Set up a system of linear inequalities that describes the minimum daily requirements for calories and vitamins. Let x = number of cups of dietary drink X, and y = number of cups of dietary drink Y. Write all the constraints as a system of linear inequalities.
A. 
B. 
C. 
D. 
Solve for 
What will be an ideal response?