Te retamos a resolver en tu cuaderno los siguientes ejercicios y preguntas. 1.Nuestro país tiene el número más grande de especies por unidad de área

en el planeta. La fauna es muy variada especialmente en las selvas

amazónicas, donde hay gran cantidad de especies únicas en el mundo.

Cuenta con más de 1 800 especiesdeaves. Escribealmenos6especies

de animales que hay en nuestro país.

2.El oso perezoso tarda aproximadamente 0,5 minutos enmoverunaextremidad

yrecorre0,25metrospor minuto. Es bastante miope, oye poco y su olfato

apenas le sirve para diferenciar las plantas de las que se alimenta. ¿Qué

distancia alcanza a recorrer el oso perezoso durante 5 minutos? Averigua el

peso aproximado de un oso perezoso.

3.Una familia ha consumido en un día de verano dos botellasdelitroymediode

agua,4botellas de1/3de litro de jugo, 5 limonadas de ¼ de litro. ¿Cuántos

litrosdelíquidohabebido?Expresael resultadocon un númeromixto.

4.Resulta sorprendente conocer la cantidad de tiempo que necesitan

dormir algunos animales durante el día. Con los siguientes datos de la tabla

respondelas siguientes preguntas. ANIMAL PARTE DEL DÍA (24 horas )

QUE DEDICAN DORMIR.

Oso perezoso 0,8

Oveja 0,125

Gorila 0,5

Gato 0,625

armadillo 0,75

Responde argumentando tu respuesta, anota en tu cuaderno:

¿Cuánto tiempo en horas y minutos duerme el oso perezoso en un

día?

¿Podemos afirmar que los animales más pequeños necesitan

menos tiempo de descanso?ANIMAL PARTE DEL DÍA (24 horas )

QUE DEDICAN DORMIR.

Oso perezoso 0,8

Oveja 0,125

Gorila 0,5

Gato 0,625

armadillo 0,75

Responde argumentando tu respuesta, anota en tu cuaderno:

¿Cuánto tiempo en horas y minutos duerme el oso perezoso en un

día?

¿Podemos afirmar que los animales más pequeños necesitan

menos tiempo de descanso?

perimeter of the first rectangular board is 9 feet.

step-by-step explanation:

let p = perimeter of first board.

l = length of first board

w = width of first board

length of first board = 2 * width of first board - 3

l = 2w - 3

perimeter of first board = 2l + 2w

since l = 2w-3, then

p = 2*(2w-3) + 2w which equals 4w-6 + 2w which equals 6w-6

length and width of the second board are reciprocals of corresponding length and width of the first board.

length of second board = 1/(2w-3)

width of second board = 1/w

perimeter of second board is 1/5th perimeter of the first board.

perimeter of second board = p/5

perimeter of the second board = (2/(2w-3) + 2/w)

since the perimeter of the first board is 5 times the perimeter of the second board, this means that:

6w-6 = 5*(2/(2w-3) + 2/w)

which is the same as:

6w-6 = (10/(2w-3) + 10/w)

if we multiply both sides of this equation by (2w-3), we get:

(6w-6)*(2w-3) = 10 + 10*(2w-3)/w

if we multiply both sides of this equation by w, we get:

(6w-6)*(2w-3)*w = 10*w + 10*(2w-3)

we can simplify this to become:

(6w-6)*(2w-3)*w = 10w + 20w - 30

which becomes:

(6w-6)*(2w-3)*w = 30w-30

if we divide both sides of this equation by (6w-6), we get:

(2w-3)*w = (30w-30)/(6w-6)

which becomes:

(2w-3)*w = 5

this can be simplified to:

2w^2 - 3w = 5

subtract 5 from both sides of this equation to get:

2w^2 - 3w - 5 = 0

which can be factored into:

(2w-5)*(w+1) = 0

which makes:

w = 5/2

or

w = -1.

w can't be negative so the only possible answer is w = 5/2.

if w = 5/2, then

p = 2w-3 = 5-3 = 2

we have:

p = 2

w = 5/2

p = 2l + 2w gets p = 4 + 5 = 9

the perimeter of the first board is 9 feet.

since the perimeter of the second board is 1/5 the perimeter of the first board, the perimeter of the second board is 9/5.

to see if that's correct, we substitute known values for l and w into the second board.

the length of the second board is 1/l.

this becomes 1/2.

the width of the second board is 1/w

this bgecomes 1/(5/2) = (2/5)

let l2 = length of second board.

let w2 = width of second board.

l2 = (1/2)

w2 = (2/5)

let p2= perimeter of second board.

then p2 = 9/5

since p2 = 2*l2 + 2*w2, we should get p2 = 9/5 using the dimensions of l2 and w2.

2 * l2 = 2 * (1/2) = 1

2 * w2 = 2 * (2/5) = 4/5

1 is the same as 5/5

5/5 + 4/5 = 9/5

p2 checks out good.

the dimensions as given are good.

answer to the problem is:

perimeter of the first rectangular board is 9 feet.

the required function is .

step-by-step explanation:

from the given table it is noticed that the graph passing through (-3,7), (0,4), (3,1) and (8,-4).

it is a linear function because the value of y is decrease by one as the value of x increase by 1.

the slope of the function is

the slope of the function is -1 and the y-intercept is 4.

the slope intercept form is

where, m is slope and b is y-intercept.

therefore the required function is . the graph of this function is shown below.

really really sorry if i'm

-12 -5(x + 4) = 3x

-12 - 5x - 20 = 3x

-12 - 20 - 5x = 3x

-32 - 5x = 3x

    + 5x   + 5x

-32 = 8x

8         8

- 4= x