Answer:

Step-by-step explanation:
<u><em>Given: </em></u>
Distance = S = 18 km
Time = t = 20 min = 20/60 = 0.33 hours
<u><em>Required:</em></u>
Average Speed = <v> = ?
<em><u>Formula:</u></em>
Average Speed = Total Distance Covered / Total Time Taken
<u><em>Solution:</em></u>
A . S = 18 / 0.33
A.S = 54 km/hr
Remark
You can use a method called unit analysis to solve this problem. You will use it many times in your education later on.
Solve

Now sort out the numbers in the numerator and those in the denominator and multiply them together.
<em><u>Numerator</u></em> 28 * 5280 * 1 * 1 = 147840
<em><u>Denominator:</u></em> 60 * 60 = 3600
Now divide the numerator by denominator
Answer = 147840 / 3600 = 41.1 Feet / second
28 miles per hour = 41.1 feet / second
Answer:
x^2 -2x +5
Step-by-step explanation:
x^2 -2x +5
----------------------------------------------------------
2x + 5 / 2x^3 + x^2 + 0x + 25
-(2x^3 + 5x^2)
----------------------------
-4x^2 + 0x
-( -4x^2 - 10x )
-----------------------------------------
10x + 25
-(10x + 25)
---------------------------
0
The desired quotient is x^2 -2x +5
Answer:
A
Step-by-step explanation:
Given
cx - 4 = 7 ( isolate the term in x by adding 4 to both sides )
cx = 11 ( divide both sides by c )
x =
→ A
Answer:
4 miles/1 day=56 miles/X days
X=56/4=14
Step-by-step explanation: