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Arisa [49]
3 years ago
11

Scott took 4 2/5 hours to clean the bathroom. He took 2 1/4 hours to clean the den. How much longer did it take Scott to clean t

he bathroom?
Mathematics
1 answer:
Anit [1.1K]3 years ago
7 0
Find the difference between the two times

= 4 2/5 - 2 1/4
convert each mixed number to an improper fraction

= 22/5 - 9/4
change to common denominator (20)

= 88/20 - 45/20
subtract numerators only

= 43/20
change back to mixed number

= 2 3/20


ANSWER: It took 2 3/20 hours longer to clean the bathroom.

Hope this helps! :)
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Ramon earns $1,840 each month and pays $53.10 on electricity. To the nearest tenth of a percent, what percent of Ramon's earning
Tomtit [17]
2.9%

You can find this by dividing $53.10 by $1,840.
8 0
3 years ago
The universally accepted film size for movies has a width of 35 millimeters. If you want to project a movie onto a square sheet
dlinn [17]

Answer:

<h2>The scale factor is 285.7143 ≅ 286.</h2>

Step-by-step explanation:

The square sheet has an area of 100 square meters.

Hence, the width of the sheet is \sqrt{100} = 10 meters.

The scale factor is needs to be in such a way, so that the film's wide will be match perfectly with the square sheet. Hence, 35x millimeters = 10 meters = 10000 millimeters .

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6 0
3 years ago
Simplify<br> Three over five<br> Or three fifths
serg [7]

3/5 cannot be simplified into a smaller fraction.


7 0
3 years ago
Read 2 more answers
Seven and thirty twp hundreths plus two and one tenth times two and seven tenths minus 18a
alexdok [17]
Answer:  Write the expression as:

" 70 \frac{32}{100} +
                         2\frac{1}{10} * 2\frac{7}{10 − 18a " ; 
______________________________________________________
or;  write as:
______________________________________________________
           " 70.32  + (2.1) * (2.7)  − 18a " ; 
______________________________________________________

To simplify:
______________________________________________________

  Using "PEDMAS" (the "order of operations") ; 

the "multiplication" comes first; 

So:  →  "(2.1) * (2.7) =  5.67 " .

And rewrite:
______________________________________________________
 " 70.32  + 5.67 − 18a " .

Now:  " 70.32 + 5.67 = 75.99 " ; 

So, we can the final simplified expression as:
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   " 75.99  −  18a " ;  

or; write as:  " 75\frac{99}{100}  −  18a " .
______________________________________________________
7 0
4 years ago
Please help need it asap
densk [106]
The extraneous root is
x = 2
7 0
3 years ago
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