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Gre4nikov [31]
2 years ago
14

Quadrilaterals and other polygons

Mathematics
2 answers:
Vinvika [58]2 years ago
4 0

Answer:

B

Step-by-step explanation:

Brut [27]2 years ago
4 0
I got B too and I got it right on my test
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Rosita can wax her car in 2 hours or 120 minutes. When she works together with Helga, they can wax the car in 45 minutes. How lo
Mashcka [7]
<h2>Time taken by Helga to wax the car is 72 minutes</h2>

Step-by-step explanation:

Let w be the work of waxing.

Rosita can wax her car in 2 hours or 120 minutes.

Time taken by Rosita = 120 minutes

\texttt{Rate of Rosita = }\frac{W}{120}

Let time taken by Helga be t,

\texttt{Rate of Helga = }\frac{W}{t}

When she works together with Helga, they can wax the car in 45 minutes.

We have

             \frac{W}{\frac{W}{120}+\frac{W}{t}}=45\\\\120t=45(120+t)\\\\120t=5400+45t\\\\t=72minutes

Time taken by Helga to wax the car is 72 minutes

6 0
3 years ago
10x - 6y = 16
Stells [14]

Answer:

If we solve any such equation and get the answer as 0 = 0 so this means that system of equations has infinite solutions.

Step-by-step explanation:

<h2>Hope it helps you!! </h2>
5 0
2 years ago
Write an expression in expression in simplest form that represents the total amount in the situation. You rent x pairs of shoes
lesya692 [45]
2x+(1.50+9)= $10.50×2= 21 so x=21
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3 years ago
What's the exponent of x in 4x?
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The exponent of x in 4x would be 1.
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