Solve the problem.Devon purchased tickets to an air show for 7 adults and 2 children. The total cost was 
. The cost of a child's ticket was 
less than the cost of an adult's ticket. Find the price of an adult's ticket and a child's ticket.
A. adult's ticket: $19; child's ticket: $15
B. adult's ticket: $22; child's ticket: $18
C. adult's ticket: $20; child's ticket: $16
D. adult's ticket: $21; child's ticket: $17
Answer: C
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Solve the problem.A company that manufactures computer chips wants to determine how many defective chips are in ten batches to be shipped. A quality control team samples 250 chips from each batch of 1000 and finds the following defective chips per batch: 40, 16, 10, 10, 26, 11, 25, 30, 35, 35. Find the median number of defective chips.
A. 26 chips B. 25.5 chips C. 25 chips D. 24 chips
Write the system of equations associated with the augmented matrix. Do not solve.
A. x = 8 y = -3 z = 3 B. x = -8 y = 3 z = -3 C. x = -5 y = 6 z = 0 D. x = 0 y = -5 z =-11
Translate the percent statement to a basic percent equation.54 is 20% of 270.
A. 270 ? 54 = 0.2 B. 54 ? 270 = 0.2 C. 0.2 ? 270 = 54 D. 0.2 ? 54 = 270
Find the part.0.7% of 4000 hurricanes
A. 280 hurricanes B. 2800 hurricanes C. 28 hurricanes D. 3 hurricanes