Simplify the complex fraction.
A. 
B. 
C. 
D. 
Answer: B
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Write the following using algebraic notation.Three divided by a number
A. 
B. 3 + x
C. 3 - x
D. 3x
Provide an appropriate response. Alice and Ted want to cut down a tree in their backyard. If the shadow on a 4-foot stick makes a length of 2.5 feet, how tall is the tree to the nearest foot whose shadow is 38 feet?
A. 24 ft B. 95 ft C. 152 ft D. 61 ft
If a problem asks you to “Find a formula . . . “ you might begin by
(a) drawing a sketch of the problem situation. (b) understanding the terms used in the problem. (c) looking for relationships between known quantities and the unknown quantity. (d) making a tables of values, using n as the unknown quantity. (e) trying any one of the above.
Solve the problem.An airline with two types of airplanes, P1 and P2, has contracted with a tour group to provide transportation for a minimum of 400 first class, 750 tourist class, and 1500 economy class passengers. For a certain trip, airplane P1 costs $10,000 to operate and can accommodate 20 first class, 50 tourist class, and 110 economy class passengers. Airplane P2 costs $8500 to operate and can accommodate 18 first class, 30 tourist class, and 44 economy class passengers. How many of each type of airplane should be used in order to minimize the operating cost?
A. 11 P1 planes and 7 P2 planes
B. 5 P1 planes and 17 P2 planes
C. 7 P1 planes and 11 P2 planes
D.
| 9 P1 planes and 13 P2 planes |