Answer:
The present age of the mother is 40 years
Step-by-step explanation:
Let the age of the mother be M and that of the daughter D. Given that the mother is now 2 1/2 times old as her daughter Mary then
M = 2.5D
Given that Four years ago the ratio of their ages was 3:1
The mother's age 4 years ago was
= M - 4
and that of the daughter then was
= D - 4
Hence
(M - 4)/(D - 4) = 3/1
Cross multiply
M - 4 = 3(D - 4)
M - 4 = 3D - 12
M = 3D - 12 + 4
M = 3D - 8
Substitute into the first equation
3D - 8 = 2.5D
3D -2.5D = 8
0.5D = 8
D = 8/0.5
= 16 Years
M = 2.5D
M = 2.5 * 16
= 40 Years
Answer:
Volume of the piece in the picture = 350 cubic inches
Volume of the remaining piece = 300 cubic inches
Step-by-step explanation:
Given question is incomplete without the picture; here is the picture as an attachment.
Volume of the rectangular prism = Length × width × height
V = 5 × 13 × 10
= 650 cubic inches
Now volume of the piece given in the picture = Volume of prism at the base + Volume of the prism with triangular base
= 10×5×1 + 
= 50 + 
= 50 + 300
= 350 cubic inches
Volume of the other piece = 650 - 350
= 300 cubic inches
Answer:
11/7is your <em>answer</em><em> </em><em>.</em><em>.</em><em>.</em><em>.</em>
Step-by-step explanation:
hope its help you