Given rational expression is:
Now we can simplify this by factoring as shown below:
Hence final answer is 
Hello! To find the unit rate in miles per gallon, all you have to do is divide the amount of miles by the amount of gallons. 2½ is 2.5 in decimal form. 50/2.5 is 20. There. The unit rate is 20 miles per gallon.
You can download the answer here:
bit. ly/3a8Nt8n
Answer:
Step-by-step explanation:
quadratic equation: ax² + bx + c =0
x' = [-b+√(b²-4ac)]/2a and x" = [-b-√(b²-4ac)]/2a
6 = x² – 10x ; x² - 10x -6 =0
(a=1, b= - 10 and c = - 6
x' = [10+√(10²+4(1)(-6)]/2(1) and x" = [10-√(10²+4(1)(-6)]/2(1)
x' =5+√31 and x' = 5-√31
Okay, So An Equation To Write Is:
T = Time
S = Money Saved
R = Money Made Per Dog
C = Cost
T = (C - S)/R
Solve:
T = (108 - 30)/8
Simplify
108-30 = 78
T = 78/8
78/8 = 9.75.
T = 9.75
Now, You Can't Walk 0.75 Of A Dog, So Round It.
T = 10
So, You Need To Walk At Least 10 Dogs.
