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stira [4]
4 years ago
7

Vince can mop a floor in 30 minutes. Annie can mop the same floor in 45 minutes. How long would it take them to mop the floor if

they work together?
Mathematics
1 answer:
amid [387]4 years ago
5 0

Answer: 15 i think

Step-by-step explanation: not sure

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Solve for x, x^2-3x-5=0
Sophie [7]

Okay so for this one, we have to isolate our X.Lets start by moving the negative 5 on the other side of the equal sign. Remember to not mix a number that is with an X with a normal number (in this case it would be the -3x and the -5). So in putting our -5 on the other sign it becomes positive. Here’s what we have: x^2-3x=5. x^2 is the same thing as 2x.So now you have to minus 3x off of your 2x. This gives us -1x, but can just be put as -x. So now we have -x=5. You’re answer could either be 5 or -5 if you decided to divide it by -1 seeing as your -x is technically -1.

7 0
4 years ago
Pang dagdag points niyo.... sagutan niyo nalang ng tamang sagot, yung tamang sago i high rate ko......
Elena-2011 [213]

Answer:

26/5

Step-by-step explanation:

(2)(2)(4)/5 −8+10

(4)(4)/5−8+10

=16/5−8+10

=−24/5+10

=26/5

Alternate form

5.2

5 0
3 years ago
Read 2 more answers
Which describes this angle?click to see angle and answers
pychu [463]
D: An angle that measures less than a right angle measures
5 0
3 years ago
Read 2 more answers
The position function of a particle in rectilinear motion is given by s(t) = 2t^3 - 21t^2 + 60t + 3 for t ≥ 0. Find the position
avanturin [10]
Your first and second derivatives which are the velocity and the acceleration respectively are correct.
The particle has reverses direction when v(t) ≤  0 so at interval 2 < t < 5 sec.
You can substitute now t = 2 for s(2) and a(2) for first changing direction. Also t = 5 for s(5) and a(5) for second changing direction.
6 0
4 years ago
I’m really struggling on this <br> It’s a puzzle and I can’t do it i don’t know what to do
WINSTONCH [101]

Answer:

Maby you add up the sides and put it in?

Step-by-step explanation:

5 0
3 years ago
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