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1 ) Rodney can rake the yard in 65 minutes Tonya can rake the same

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1.) Rodney can rake the yard in 65 minutes. Tonya can
rake the same yard in 95 minutes, and Paul can rake the
same yard in 85 minutes. Working together, apporximately
how long will it take then to rake the yard?
A. 17 minutes B. 22 minutes
C. 27 minutes D. 32 minutes
2.) A certain strain of bacteria grew from 125 to 10,000 is
5 days. Approximately, how much longer will it be before
the bacteria reaches 20,000?
A. 0.79 days B. 0.88 days
C. 2.43 days D. 5.79 days
3.)If 3+i is a solution for x2+px+q=0, where p and q are
real numbers, what is the value of p?
A. -6 B. -3
C. 3 D. 6
(Please show all your work, so I can understand how you
got the answer)
Solution

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1.) Rodney can rake the yard in 65 minutes. Tonya can
rake the same yard in 95 minutes, and Paul can rake the
same yard in 85 minutes. Working together, apporximately
how long will it take then to rake the yard?
1/x = 1/65 + 1/95 + 1/85
x = x=26.5423516183
A. 17 minutes B. 22 minutes
C. 27 minutes D. 32 minutes
2.) A certain strain of bacteria grew from 125 to 10,000 is
5 days. Approximately, how much longer will it be before
the bacteria reaches 20,000?
definlty it will take more than 5 days
A. 0.79 days B. 0.88 days
C. 2.43 days D. 5.79 days
3.)If 3+i is a solution for x2+px+q=0, where p and q are
real numbers, what is the value of p?
3-i will be root
and p will be sum of rots

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1.) Rodney can rake the yard in 65 minutes. Tonya can rake the same yard in 95 minutes, and Paul can rake the same yard in 85 minutes. Working together, apporximately how long will it take then to rake the yard? A. 17 minutes B. 22 minutes C. 27 minutes D. 32 minutes 2.) A certain strain of bacteria grew from 125 to 10,000 is 5 days. Approximately, how much longer will it be before the bacteria reaches 20,000? A. 0.79 days B. 0.88 days C. 2.43 days D. 5.79 days 3.)If 3+i is a solution for x2+px+q=0, where p and q are real numbers, what is the value of p? A. -6 B. -3 C. 3 D. 6 (Please show all your work, so I can understand how you got the answer) Solution 1.) Rodney can rake the yard in 65 m inutes. Tonya can rake the same yard in 95 minutes, and Paul can rake the same yard in 85 minutes. Working together, apporximately how long will it take then to rake the yard? 1/x = 1/65 + 1/95 ...
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