Answer:
A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five."
Step-by-step explanation:
Answer:
Midpoint coordinates are 
Step-by-step explanation:
The Coordinates of R = (-8,3)
The Coordinates of S = (9, -7)
Let M be the mid point of M and its coordinates by (x,y)
Now, by mid point formula,

⇒
So, the midpoint coordinates are 
Answer:
y = 2/5x + 12/5
Step-by-step explanation:
Let's solve for y.
2x−5y=−12
Step 1: Add -2x to both sides.
2x−5y+−2x=−12+−2x
−5y=−2x−12
Step 2: Divide both sides by -5.
−5y/−5 = −2x−12/−5
y = 2/5x + 12/5
Answer:
300 books
Step-by-step explanation:
10 x 6 = 1 min
50 x 6 = 300