Expand the following by using the distributive property: 6(-3w+1/3)
2 answers:
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Let
x-------> the number of fiction books
y-------> the number of nonfiction books.
we know that
-----> equation
-----> equation
Add equation and equation
<u>find the value of y</u>
therefore
<u>the answer is</u>
Part a) the number of fiction books is
Part b) the number of nonfiction books is
Given:
y varies directly with x,
It is given that y = 7 when x = -9.
To find:
The value of y when x = 27 for the direct variation.
Solution:
It is given that y varies directly with x, so
...(i)
Where, k is the constant of proportionality.
It is given that y = 7 when x = -9. Putting these values in (i), we get
Putting in (i), we get
Putting , we get
Therefore, the required value is .