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sergij07 [2.7K]
3 years ago
9

Please and thank you

Mathematics
2 answers:
Yanka [14]3 years ago
8 0
The picture is to blurry sorry
Ivenika [448]3 years ago
4 0
Too blurry i can’t read nun
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in 2 h, kelly laid new floor tile over 1/5 of the room. when she was joined by annette, the rest of the work was completed in 3h
jeyben [28]

Answer: Annette will take 6 hours to do the entire job alone.

Step-by-step explanation:

Given: Time taken by Kelly to do \dfrac{1}{5} of job = 2 hours

i.e. Time for complete job done alone by Kelly =5\times2=10\ hours

Rest of work = 1-\dfrac{1}{5}=\dfrac{4}{5} of the job

\dfrac{4}{5}  of the complete job done by both Kelly and Annette in 3 hours

Time would be taken by then to do entire job together = 3\times\dfrac{5}{4}=3.75\ hours

Let t be the time taken by Annette to do job alone.

Then, as per situation

\dfrac{1}{3.75}=\dfrac{1}{10}+\dfrac{1}{t}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{3.75}-\dfrac{1}{10}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{4}{15}-\dfrac{1}{10}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{6}\\\\\Rightarrow\ t=6

hence, Annette will take 6 hours to do the entire job alone.

7 0
4 years ago
PLZ HELP Due in an hour!
frosja888 [35]

Answer:

1. No, 2. 46, 3. The amount of tails flips would be more than the amount of heads flips.

Step-by-step explanation:

1 is no because .77 and .23 are not equal to .5, so her prediction was wrong. 2 is 46 because if you double both the numbers (to get a total of 200 flips), you would get 154 tails and 46 heads. 3 is more tails than heads because that is what we have observed.

6 0
3 years ago
What type of line is y = x?
Troyanec [42]

Answer:

A slanted line slanting right on the graph

Step-by-step explanation:

It’s c

5 0
3 years ago
Which equation can be used to represent the statement?
Arte-miy333 [17]

You need to specify the statement needed to use the equation. Thank you. I will then answer it if needed.

3 0
3 years ago
HELP I HAVE TEN MINUTES!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Flura [38]
No


Explanation

Do it on your own
8 0
3 years ago
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