Which equation represents the graph? (y-1)^2/49-x^2/81=1 (y-1)^2/7-x^2/9=1
1 answer:
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<u><em>Answer:</em></u>
She stayed awake for 295 minutes today
<u><em>Explanation:</em></u>
<u>We are given that:</u>
Yesterday, she drank one cup
Today, she drank of a cup more than yesterday
<u>This means that:</u>
Number of cups she drank today =
Now, we know that she drinks of a cup per hour any time she is not sleeping
We use cross multiplication to get the time she took to drink cups
1 hour ...........................> of a cup
?? hours ......................> cups
Time taken =
This means that she was awake for hours
<u>Finally, we convert this to minutes:</u>
Knowing that 1 hour has 60 minutes, therefore:
She stayed awake for minutes
Hope this helps :)
