Answer:
The amount borrowed by the corporation at 3%. 4% and 5% are $100,000, $250.000 and $150,000 respectively.
Water-cement ratio is the ration of mass of water to the mass of cement.
Numerically it is around 0.5, depending on the desired strength and workability.
A low ratio results in a dry mix which is difficult to compact, with a risk of developing voids in the final concrete.
A high ratio weakens the concrete, and is highly undesirable if strength is important.
To improve both the strength and workability of the concrete, sometime plasticizers are added.
It would have been appropriate to post this question in the Engineering section (if one is available).
Answer:
same i don't know
Step-by-step explanation:
Let's call this unknown number, x.
So we know that 4 and this number, x, are going to be added together and 6 is going to be subtracted from it. Therefore we can write the expression:
Since we cannot proceed any further without knowing either the value of x or what the expression equals, this is as simplified as it can be.
