Answer:
let mother's age y and daughter age x
a/q y=3x and y-5=5x-25
put y in second eq we get x=10 &y=30(their present age)
8x + 5 - (4x + 2)
= 8x - 4x + 5 - 2
= 4x + 3
2.
This is a binomial ( contains 2 terms)
Answer:
803.84=A
Step-by-step explanation:
The area of a circle can be found by using the equation 
=A.
=A
=A
(3.14)(256)=A
803.84=A and the units are, how ever the radius is measured cubed
Answer:
228 cm²
Step-by-step explanation:
The volume of a cylinder of radius r and height h is given by ...
V = πr²·h
Filling in the given information, we can solve for r:
235.5 = π·r²·12
√(235.5/(12π)) = r ≈ 2.49937 . . . . cm
The area of a cylinder is given by ...
A = 2πr² + 2πrh = 2πr(r +h)
Filling in the radius and height, we can find the area to be ...
A = 2π·2.49937·(2.49937 +12) ≈ 227.698 . . . . cm²
About 228 cm² of aluminum are required to make a typical soda can.
