Decide if the answer is reasonable or unreasonable by rounding the numbers and estimating the answer. If the answer is not reasonable, find the correct answer.401.89 ÷ 39.6 = 10.15
A. Unreasonable, should be 0.1015
B. Reasonable
C. Unreasonable, should be 1.015
D. Unreasonable, should be 101.5
Answer: B
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If y varies inversely as x, find the inverse variation equation for the situation.y = 
when x = 42
A. y = 
B. y = 
C. y = 
x
D. y = 
Divide, simplifying if possible.
÷ 
A. 
B. 
C. 
D. 
Add or subtract, as indicated. Assume that all variables represent positive real numbers.
+ 
A. 4
B. 
C. 
D. 
Solve.A tour bus is traveling along a triangular path. The three straight lines form a right triangle. One leg of the triangle represents a distance of 120 miles. The other leg of the triangle is 80 miles shorter than the hypotenuse. What is the length of the hypotenuse of this triangle? Of the other leg?
A. The hypotenuse is 130 miles long. The shorter leg is 50 miles long. B. The hypotenuse is 132 miles long. The shorter leg is 49 miles long. C. The hypotenuse is 133 miles long. The shorter leg is 52 miles long. D. The hypotenuse is 129 miles long. The shorter leg is 48 miles long.