Solve the problem.Bill has 6 friends over for dinner. After dinner, the seven of them are thinking about going out dancing. Not everyone is sure that they want to go. How many subsets of the seven are possible if at least two people go dancing?
A. 120
B. 56
C. 121
D. 6
Answer: A
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Write the word name for the decimal number.5.937
A. five and nine hundred thirty-seven tenths B. five and nine hundred thirty-seven millionths C. five and nine hundred thirty-seven hundredths D. five and nine hundred thirty-seven thousandths
Solve. Remember to insert units when writing your answer.The highway commission is installing concrete sound barriers along a highway. Each barrier is 7 yd 2 ft long. Find the total length of 8 barriers placed end to end.
A. 12 yd 2 ft B. 61 yd 2 ft C. 61 yd 1 ft D. 71 yd 1 ft
Solve the problem.Suppose that during a certain step in a chemical manufacturing process the amount of chlorine dissolved in a solution, measured in parts per million (ppm), is related to the elapsed time measured from the beginning of the step. Use the following table as a representation of this relationship. Make a scatter diagram of the data. What is happening to the amount of chlorine in solution during this time frame?
A. The amount of chlorine dissolved
increased as time elapsed.
B. The amount of chlorine dissolved
increased as time elapsed.
C. The amount of chlorine dissolved
increased as time elapsed.
D. The amount of chlorine dissolved
decreased as time elapsed.
Solve the problem.A couple have bought a new house and are comparing quotes from two moving companies for moving their furniture. Company A charges $100 for the truck and $50 per hour for the movers. Company B charges $90 for the truck and $60 per hour for the movers. Create a cost equation for each company where y is the total cost and x is the number of hours of labor. Write a system of equations.
A. y = 100x + 50 y = 90x + 60 B. 50y = 100x 60y = 90x C. y = 50x + 100 y = 60x + 90 D. 50y = x + 100 60y = x + 90