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1 year ago

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Mathematics

2 answers:

OLEGan [10]1 year ago

7 0

The correct answer is 12:16 P.M.

<h3>How to find when did Deb finish eating lunch ?</h3>

According to the problem,

Deb started doing yard work at 9:52 A.M.
After working for 1 hour and 48 minutes, she stopped to have lunch.
It took her 36 minutes to eat lunch.

∴ Time at which Dev finishes her lunch =

9:52 A.M. + ( 1 hour and 48 minutes + 36 minutes )

= 11:40 A.M. + 36 minutes = 12 : 16 P.M.

∴ Deb finish eating lunch at 12:16 P.M.

Find out more information about time calculations here: brainly.com/question/1933707

#SPJ2

NNADVOKAT [17]1 year ago

6 0

You add 1 hour and 46 min to 9:52am and then add another 36min
So deb finished eating her lunch at 12:16pm

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At the beginning of my bike ride I feel good, so I can travel 20 miles per hour. Later, I get tired and travel only 12 miles per

Vesnalui [34]

Answer: $3\dfrac{1}{4}$ hours

Step-by-step explanation:

Let x be the time ( in hours ) you feel good and y be the time ( in hours ) that you get tired.

As per given , we have

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Since : $Distance = Speed\times Time$

So , we have

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According to the given question , we have the following system of equations ,

$x+y= 8--------(1)\\\\20x+12y=122------------------(2)$

Multiply 12 on both sides of equation (1) , we get

$12x+12y=96------------(3)$

Eliminate equation (3) from (2) , we get

$8x=26\\\\\Rightarrow\ x=\dfrac{13}{4}=3\dfrac{1}{4}$

Hence, you felt $3\dfrac{1}{4}$ hours good.

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2 years ago

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Lol I just needed help with this kinda stuff...

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svetoff [14.1K]

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Step-by-step explanation:

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