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iogann1982 [59]
3 years ago
13

Krystal can wax a floor in 16 minutes. Perry helped her and it took 5.76 minutes. How long would it take perry to do it alone?

Mathematics
1 answer:
finlep [7]3 years ago
8 0
<span>Krystal's rate = 1 floor in 16 min. = 1/16 floors per min.

Working together their rate = 1 floor in 5.76 min. = 1/5.76 floors per min.

We need to determine Perry's rate, so we need to equate their combined rate with the sum of the individual rates.

Let Perry's time = x

In equation form, we can write:
1/16 + 1/x = 1/5.76
Solve for x:

(x+16)/16x = 1/5.76 -> 5.76(x+16) = 16x -> 10.24x = 92.16 -> x = 9

So, Perry would take 9 mins. to do the floor alone.

I hope this helped!
Please Rate & Thank!
Please mark as Brainliest!

Have a wonderful night! : )</span>
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kondor19780726 [428]
Look

2x^2+13x+6
factored into
(ax+b)(cx+d)
we need to find a,b,c,d such that when multipied we get 2x^2+13x+6
first
we know that the first number hast to be 2
(2x+somethin)(1x+sometin)
and the end numbers have to multiply to 6
if we try 1 and 6
(2x+1)(x+6)=
2x^2+x+12x+6=
2x^2+13x+6
correct

so
2x^2+13x+6=0=(2x+1)(x+6)

therefor assume
2x+1=0 and x+6=0

2x+1=0
minus 1
2x=-1
divide 2
x=-1/2

other one
x+6=0
mnus 6
x=-6

x=-6 or -1/2


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3 years ago
Third degree with zeros of − 3 −1 and 5 and a y-intercept of − 10
Leni [432]

Answer:

What are you asking? Yeah I know that but what do you need to know?

Step-by-step explanation:

7 0
2 years ago
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Answer:

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Step-by-step explanation:

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plug n chug:

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5 0
3 years ago
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Ira Lisetskai [31]
So we know what the variables are already.

\frac{3*2}{6}

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6/6 is also equal to 1.
6 0
2 years ago
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schepotkina [342]

Answer:

Jonathan is 36 years old.

Step-by-step explanation:

Jonathan=2 Lawrence

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54 divided by 3 equals 18.

18 times 2 equals 36.

Hope this helped! :)

5 0
3 years ago
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