Solve the problem.One maid can clean the house in 3 hours. Another maid can do the job in 4 hours. How long will it take them to do the job working together?

A.  hr
B. 1 hr
C.  hr
D. 12 hr


Answer: B

Mathematics

You might also like to view...

Find a parametrization for the line segment beginning at P1 and ending at P2.P1(5, -7, -4) and P2(0, -7, -6)

A. x = -5t + 5, y = -7t, z = -2t - 4, 0 ? t ? 1 B. x = 5t, y = -7t, z = 2t - 6, 0 ? t ? 1 C. x = -5t + 5, y = -7, z = -2t - 4, 0 ? t ? 1 D. x = 5t, y = -7, z = 2t - 6, 0 ? t ? 1

Mathematics

Provide an appropriate response.Graph the function y = f(x) = x2 - 6x and indicate the coordinates of the vertex and intercepts.

What will be an ideal response?

Mathematics

Solve the problem.Find an equation of the hyperbola that passes through the points (-3, -2) and (4, ).

A.  -  = 1
B. 3y2 - 7x2 = 1
C.   -  = 1
D.  -  = 1

Mathematics

Solve.Sandi can make a quilt in 10 days and Eva can make a quilt in 6 days. In how many days can they make a quilt working together?

A. 4 days
B. 3 days
C. 3 days
D. 5 days

Mathematics