Given is the number of science fiction books = 48
Let the number of mystery books be = x
Let the number of biographies be = y
Ratio of the number of mystery books to the number of science fiction books is 4:3 so 
=
Ratio of the number of science fiction books to the number of biographies is 4:5 so 
=
Hence there are 48 science fiction books, 64 mystery books and 60 biographies.
So total number of books are = 
Answer: x = 3.5
Step-by-Step Solution:
Let us first label the figure.
Let the Triangle be ABC with a line DE || BC.
Now, in ∆ABC,
DE || BC (given)
=> AD/DB = AE/EC (by B.P.T)
Substituting the given values,
AD/DB = AE/EC
2/4 = x/7
1/2 = x/7
2x = 7
x = 7/2
=> x = 3.5
Therefore, x = 3.5
Y = -1/2x + 3
Why?
Looking at the line start where the line intercepts the y line, it goes down one over 2 and that’s your slope, the 3 is bc that’s where the line crosses the y line
Answer:
The football field is 360 feet long.
Step-by-step explanation:
Remember, there are 3 feet in 1 yard.
1 yard = 3 feet
To find out how long the football field in feet, we must convert 120 yards into feet.
To convert yards to feed, multiply the number of yards by 3 (3 feet per yard).
120 × 3 = 360
The football field is 360 feet long.
I hope this helps. :)
so this should help cause
