Step-by-step explanation:
Let the present age of father = x years
and the present age of son = y years
according to the first condition
x + y =44 ........(i)
according to the second condition
x+8 = 2(y+8)
or x+ 8 = 2y + 16
or x- 2y = 8 ............(ii)
solve the equation (i) & (ii) we get
x + y =44
x- 2y = 8
••••••••••••••••••••••••
3y = 36
or y = 12
put the value of y in equation (i), we get
x + 12 =44
or x = 32
so the present age of father = x =32 years
and the present age of son = y = 12 years.
The answer is 4x^12-24x^9+36x^6
For a more detailed answer, check the picture below.
1954 to 2015 = 61 years
310,000 = x*(1.22)^61
where x i original price
x = 310,000 /
<span>
<span>
<span>
185,33</span></span></span>2
x = <span><span><span>1.67
Original price = 1.67 which seems a little high, but that's my answer.
x = </span></span></span><span><span>12.22
</span> </span>
Hi,
To find the volume of cylinder this formula is required.
To get radius you need to divide diameter with 2 like this.
Now just put your values into formula.
You will need 653451.27 cubic centimetres of concrete.
Hope this helps.
r3t40