Solve.One maid can clean the house three times faster than another. Working together they can clean the entire house in 3 hours. How long would it take the faster maid cleaning alone?
A. 5 hr
B. 
hr
C. 3 hr
D. 4 hr
Answer: D
Mathematics
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Solve the problem.Find the length of the pulley belt shown in the figure if the belt crosses at 60° angles. The radius of each circle is 9.39 in.
A. 104 in. B. 144 in. C. 81.8 in. D. Not enough information.
Mathematics
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 57
B. 
C. 
D. 8
Mathematics
How many lines are determined by 11 points if no 3 points lie on a straight line? ?
A. 110 B. 50 C. 39 D. 44 E. 55
Mathematics
Find the next term of the sequence.
?
What will be an ideal response?
Mathematics