4 years ago

The

Mathematics

1 answer:

Talja [164]4 years ago

5 0

What your thing doesn’t make sense I’m not able to read it correctly

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Stolb23 [73]

The answer is -4x+3.......

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3 years ago

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babunello [35]

66.27 is your answer

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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

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4 years ago

What number is in the middle of 25 and 50?

Firdavs [7]

(50-25)/2
25/2
12.5
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3 years ago

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Which expression is equivalent to ºd ?<br> O ata<br> O o-a<br> og<br> 90<br> O

yaroslaw [1]

Answer:

As by the picture, qp is the correct answer.

Step-by-step explanation:

Both are multiplication and in multiplication you can swap the factors and get the same answer every time.

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