Alexis can wash a total of 14 windows in 1 hour
<h3><u>Solution:</u></h3>
Given that Alexis washes
windows in
hours
<u><em>To find: </em></u>number of windows washed in one hour
To simplify the calculations we will convert the given mixed fraction to improper fraction
![\begin{array}{l}{=10 \frac{1}{2}} \\\\ {=\frac{2 \times 10+1}{2}} \\\\ {=\frac{21}{2}=10.5}\end{array}](https://tex.z-dn.net/?f=%5Cbegin%7Barray%7D%7Bl%7D%7B%3D10%20%5Cfrac%7B1%7D%7B2%7D%7D%20%5C%5C%5C%5C%20%7B%3D%5Cfrac%7B2%20%5Ctimes%2010%2B1%7D%7B2%7D%7D%20%5C%5C%5C%5C%20%7B%3D%5Cfrac%7B21%7D%7B2%7D%3D10.5%7D%5Cend%7Barray%7D)
Hence, to wash 10.5 windows, Alexis takes 0.75 hours
Let "n" be the number of windows washed in 1 hour
10.5 windows ⇒ 0.75 hours
"n" windows ⇒ 1 hour
By cross-multiplication we get,
![n \times 0.75 = 10.5 \times 1](https://tex.z-dn.net/?f=n%20%5Ctimes%200.75%20%3D%2010.5%20%5Ctimes%201)
![n = \frac{10.5}{0.75} \\\\n = 14](https://tex.z-dn.net/?f=n%20%3D%20%5Cfrac%7B10.5%7D%7B0.75%7D%20%5C%5C%5C%5Cn%20%3D%2014)
Thus Alexis can wash 14 windows in one hour
Hey!~
To get the answer all you would need to do is divide 589/31=19.
If you round $19 dollars up, the closest number would be $20. The answer is B. $20.00.
Hope this helps and have a great day!
-Lindsey
Answer:
he needs to know the width!!!
Step-by-step explanation:
since length multiplied by the width equals area,
so since the length is given, the width is needed
YQ/SQ = JB/DB
YQ/72 = 60/45
YQ = 72*(60/45) = 96
Selection D is appropriate.