Solve the problem.One maid can clean the house in 6 hr. Another maid can do the job in 5 hr. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 2
hr
D. 30 hr
Answer: C
You might also like to view...
Give an appropriate answer.Why is the method of sampling important?
What will be an ideal response?
Suppose the wholesale price of a certain brand of medium-sized eggs p (in dollars/carton) is related to the weekly supply x (in thousands of cartons) by the equation 
.
?
If 25,000 cartons of eggs are available at the beginning of a certain week and the supply is falling at the rate of 1,000 cartons/week, at what rate is the wholesale price changing? (Hint: To find the value of p when 
, solve the supply equation for p when 
).
?
A. Increasing at the rate of 3.6 dollars/carton/wk
B. Increasing at the rate of 3.7 dollars/carton/wk
C. Dropping at the rate of 3.7 dollars/carton/wk
D. Dropping at the rate of 3.7 dollars/carton/wk
E. Dropping at the rate of 3.6 dollars/carton/wk
Solve. Round decimals to the nearest thousandth and percents to the nearest tenth of a percent.Write the equivalent decimal and percent for 
.
A. 0.071; 0.71% B. 0.191; 19.1% C. 0.071; 7.1% D. 0.191; 191%
Find a polynomial with real coefficients that has zeros -1, 3i, and -3i.
A. x3 + 9x2 + x + 9 B. x3 + x2 - 9x - 9 C. x3 + x2 + 3x + 3 D. x3 + x2 + 9x + 9 E. x3 - x2 + 9x - 9