As a construction supervisor you must order concrete to fill a mold for a pillar. The volume of the mold is 186 cubic feet concr
2 answers:
<h2>Answer:</h2>
The volume of the cubic yard of concrete will you need to order to fill the mold is:
6.889 cubic yard
<h2>Step-by-step explanation:</h2>It is given that:
The volume of the mold is 186 cubic feet concrete.
Now, it is sold by the cubic yards.
i.e. we have to convert this volume into cubic yards.
We know the conversion that:
Hence,
i.e.
Hence,
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Answer:
The ratio of George age to Carl's age is 1:12.
Step-by-step explanation:
Let the age of George be 'g'.
Let the age of Alex be 'a'.
Also Let the age of Carl be 'c'.
Given:
The sum of their ages is 68.
So equation can be framed as;
Also Given:
Alex is 12 years older than George.
So equation can be framed as;
Now Given:
Carl is three times older than Alex.
But
So we get;
Now Substituting equation 2 and equation 3 in equation 1 we get;
Subtracting both side by 48 using subtraction property of equality we get;
Now Dividing both side by 5 using Division property of equality we get;
Hence George age
Now Alex age
Also Carl's age
Now we need to find the ratio of George age to Carl's age.
Hence the ratio of George age to Carl's age is 1:12.
Multiplication and division with the powers of ten
So, when multiply powers of ten, all you have to do add up the powers.
The reverse goes when you are dividing. You would subtract the powers.
9 x 10^7 => 3 x 10^3
The words " how many times as large as " indicates that we are going to divide the two, making it look like this:
Divide the 9 by 3 you get 3
Then subtract 10^3 from 10^7
Therefore, the answer is 3 x 10^4, or A