Answer:
otal concrete weight =2400kg
have 15% water means in 2400kg of concrete 360kg is water.ramaining 2040kg is of cement,sand and stone.in the ratio of 1:2:5 respectively.then according to ratio.weight of cement=255kg
weight of sand=510kg
weight of stone=1275kg
Step-by-step explanation:
Since the denominators are already equal to each other, all you have to do is add the numerators.
Here is one example of when you would use the friendly number strategy to subtract.
42 - 18
We will turn the 18 into a friendly number, which is going to be 20.
(42 + 2) - (18 + 3)
44 - 20
Now it is easier to subtract 44 - 20 than it is 42 -18. With 42 - 18 we would have to barrow whereas with 44 -20 we do not have to barrow and we can do it in our head easier and makes it faster.
Answer:
V = 21.195 in ^3
Step-by-step explanation:
The volume of a cylinder is
V = pi * r^2 h
We know the diameter not the radius
d = 2r
3 = 2r
Divide by 2
3/2 =r
We know pi = 3.14 and h =3
V = 3.14 * (3/2) ^2 *3
V = 3.14 * 9/4 *4
V = 21.195 in ^3
Answer:
The point on the y-axis is (0,-3) and the point on the x-axis is (6,0)
Step-by-step explanation:
Start by plotting -3 on the y-axis
Then move up 1 and over 2 from there