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Natasha_Volkova [10]
2 years ago
7

Amy and Roger both wash windows at a large downtown building. Amy can wash 25 windows in 4 hours. Roger can wash 32 windows in 6

hours. How many windows can they wash together in 12 hours? [Type your answer as a number.]
Mathematics
2 answers:
nirvana33 [79]2 years ago
8 0

Answer:

139

Step-by-step explanation:

Brainliest?

Naily [24]2 years ago
6 0

Answer:

Together they can wash  139 windows  in 12 hours

Step-by-step explanation:

t= windows they can  wash together

25/4 +32/6 = t/12

Find common denominator

150/24  + 128/24 = t/12

278/24=t/12

Cross multiplication:

24t = 3,336

Divide both sides by 24

t=139

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Determina el centro,radio y gráfica de la circunferencia:(x+2)2 + (y-3)2=121
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Answer:

La ecuación genérica para un círculo centrado en el punto (a, b), de radio R, es:

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Entonces si miramos a nuestra ecuación:

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el radio está dado por:

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La gráfica de esta circunferencia se puede ver en la imagen de abajo.

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