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3 years ago

Amanda can jog 18 miles in 5 hours.

Mathematics

2 answers:

san4es73 [151]3 years ago

6 0

Answer:

the probelm does not make sense

Step-by-step explanation:

you can try dividing

julsineya [31]3 years ago

5 0

Answer:

14.4 miles

Step-by-step explanation:

Amanda can jog 18 miles in 5 hours.

At the same rate how many miles can Amanda jog in 4 hours=??

solution:

Distance covered by Amanda in 5 hours = 18 miles

Distance covered in 1 hour = 18/5 miles

Distance covered in 1 hour is =3.6

Distance covered in 4 hours = 4*3.6=14.4

Hence Amanda can jog 14.4 miles in 4 hours

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Andre45 [30]

Answer:

B) 2 + 4x = 5 - 3 - 3x

Step-by-step explanation:

By simplifying JUST the right side and re-arranging them

2 + 4x = 5 - 3(x + 1),

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El ingreso de una empresa de construcción de obras civiles se estima a través del tiempo de acuerdo con la siguiente función I(t

brilliants [131]

Usando conceptos de funciones cuadráticas, se encuentra que:

El máximo ingreso será alcanzado en 6 años.

El máximo ingreso será de 800 miles de soles.

La función que estimate el tiempo es dada por:

$I(t) = -64 + 288t - 24t^2$

Que es una función cuadrática con coeficientes $a = -24, b = 288, c = -64$ .

El año en qué se alcanzará el máximo ingreso es el valor de t de el vertice, o sea:

$t_V = -\frac{b}{2a} = -\frac{288}{2(-24)} = \frac{288}{48} = 6$

El máximo ingreso será alcanzado en 6 años.

El valor del máximo ingreso es el valor de I de el vertice, o sea:

$I_v = -\frac{\Delta}{4a} = -\frac{b^2 - 4ac}{4a}$

Entonces:

$I_v = -\frac{288^2 - 4(-24)(-64)}{4(-24)} = 800$

El máximo ingreso será de 800 miles de soles.

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