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 
Answer:
His quiz score increased by about 7%.
Step-by-step explanation:
Take the two quiz scores and add them together to get 159.
Take the difference between the two quiz scores to get 11.
Divide the difference by the sum to get 0.0692 or about 7%.
Answer:
x = 4.5 x = .5
Step-by-step explanation:
|2x - 5| = 4
The absolute value has two solutions one positive and one negative
2x-5 = 4 2x-5 = -4
Add 5 on each side
2x-5+5 = 4+5 2x-5+5 = -4+5
2x = 9 2x =1
Divide by 2
2x/2 =9/2 2x/2 = 1/2
x = 4.5 x = .5
Answer:
464
Step-by-step explanation:
Initial number of channels = 486
Additional channels = 129
Number of channels removed = 151
To obtain the number of channels he has now :
We Take the sum of the number of initial and additional channels, then we subtract the number of channels removed :
Number of channels he has now :
486 + 129 - 151 = 464
A rectangle with maximum area is always a square
a square has the same length and width.
to find the length of the side of a square with the known area, you would take the square root of the area
so in this case, the side length = square root of 100
square root (100) = 10 ( check: 10 x 10 = 100)
so both the length and the width equal 10 meters