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tangare [24]
3 years ago
10

Fran reads 27 pages per hour. If she reads a total of 347 pages one weekend, how many hours to the nearest hundredth does she ne

ed?
Mathematics
1 answer:
Dima020 [189]3 years ago
7 0

I believe the answer would be that Fran spent 12.85 hours reading.

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4 over 15 × 10 over 8
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The answer is 1/3. Hope I helped
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What is the slope of a line that passes through the points (-4,0) and (0,4)?
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1

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Car A travels 20 mph faster than Car B. In the same time that Car A travels 252 miles, Car B travels 196 miles. Find their speed
RoseWind [281]

<u>Answer:</u>

A = 70

B = 90

<u>Step-by-step explanation:</u>

We know that Car A travels 20 mph faster than Car B.

Assuming the speed of Car B to be x and the speed of Car A to be x+20, we can write:

\frac{196}{x} =\frac{252}{x+20}

Taking the reciprocal of both sides to make x the subject:

196(x+20)=252x

196x+3920=252x

252x-196x=3920

56x=3920

x=70 ---> speed of Car A

Finding the speed of Car B: x+20 = 70+20=90

Therefore, the speed of Car A = 70 and the speed of Car B = 90.

8 0
3 years ago
CUALES SON LOS GRADOS PARA HACER UNA GRAFICA DE PASTEL, CON LOS SIGUIENTES PORCENTAJES( 20%,50%,10%)
svlad2 [7]

Answer:

Lo primero que debemos saber, es que la gráfica de pastel nos permite dividir a una población, la cual sería el 100%, en porcentajes menores que representan algo.

En este caso tenemos los porcentajes 20%, 50%, 10%  (notar que no suman 100%, entonces nos falta algún porcentaje)

Bueno, como sabemos el gráfico (el cual es un círculo) representa el 100%.

Y en un círculo, tenemos un ángulo de 360°

Entonces comenzamos con la equivalencia:

360° = 100%

Entonces, ¿a que grado corresponde el 50%? Planteamos la ecuación:

x = 50%

Si tomamos el cociente entre las ecuaciones:

x = 50% y  360° = 100%

obtenemos:

x/360° = 50%/100%

resolviendo para x, obtenemos:

x = (50%/100%)*360° = 0.5*360° = 180°

Para los otros porcentajes hacemos lo mismo.

Para el de 20% tenemos:

y = 20%

planteamos la ecuación:

y/360° = 20%/100%

y = 0.2*360° = 72°

Finalmente, para el de 10% tendremos:

z = 10%

planteando la ecuación como antes:

z/360° = 10%/100%

z = 0.1*360 = 36°

Asi, hemos encontrado los grados correspondientes para cada porcentaje.

8 0
3 years ago
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