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2 years ago

12

Tyler looks at a map on his phone. He zooms in until the map scale for centimeters to kilometers is 0.3 to 1/5. How many centime

ters does the map use to show 1 kilometer?

1 answer:

lutik1710 [3]2 years ago

5 0

one kilometer is equal to a hundred thousand centimeters

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¿cuanto pesa cada uno de nuestros 3 personajes?

sergij07 [2.7K]

Resolviendo el sistema de ecuaciones veremos que:

niña = 23kg
niño = 28kg
perro = 18kg.

<h3>¿Como resolver el sistema de ecuaciones?</h3>

Aqui tenemos el sistema de ecuaciones:

Niña + niño = 51kg

Niño + perro = 46 kg

Niña + perro = 41kg

Para resolver esto, lo primero que debemos hacer es aislar una variable en una de las ecuaciones, por ejemplo, podriamos aislar "perro" en la tercera:

perro = 41kg - niña

Ahora reemplazamos eso en la segunda para obtener:

niño + (41kg - niña) = 46kg

niño - niña = 46kg - 41kg = 5kg

niño = niña + 5kg

Ahora logramos obtener la variable "niño" en terminos de la variable "niña". Podemos reemplazar esto en la primera ecuacion del sistema.

niña + niño = 51kg

niña + (niña + 5kg) = 51kg

2*niña = 51kg - 5kg = 46kg

niña = 46kg/2 = 23kg.

Ahora que sabemos esto, usamos las otras ecuaciones para encontrar el peso del niño y el perro:

niño = niña + 5kg = 23kg + 5kg = 28kg

perro = 41kg - niña = 41kg - 23kg = 18kg.

Sí quieres aprender más sobre sistemas de ecuaciones, puedes leer:

brainly.com/question/17174746

6 0

2 years ago

if trapezium of area 140 cm horsepower sides 10 cm apart and one of them decides is 16 cm longfind the area find the length of t

Vilka [71]

Given :

Area of the trapezium is 140 cm².
Its height is 10 cm.
One of the parallel side is 16 cm.

To Find :

The other parallel side.

Solution :

Let the other parallel side be x

We know that,

${ \qquad \: \pmb{ \dfrac{1}{2} \times (sum \: of \: the \: parallel \: sides) \times height} = \pmb{Area_{(trapezium)}}}$

Now, Substituting the given values in the formula :

$\qquad { \dashrightarrow \: { \sf{ \dfrac{1}{2} \times (16 + x)\: \times 10 \: = {140}}}}$

$\qquad { \dashrightarrow \: { \sf{ 5 \times (16 + x)\ \: = {140}}}}$

$\qquad { \dashrightarrow \: { \sf{ 80 + 5x = {140}}}}$

$\qquad { \dashrightarrow \: { \sf{ 5x = {140 - 80}}}}$

$\qquad { \dashrightarrow \: { \sf{ 5x = {60}}}}$

$\qquad { \dashrightarrow \: { \sf{ x = { \dfrac{60}{5} }}}}$

$\qquad { \dashrightarrow \: { \pmb{ x = { 12 }}}}$

Therefore,

The other parallel side of the trapezium is 12 cm.

8 0

2 years ago

Please help. solve for x

malfutka [58]

Step-by-step explanation:

Given,

Base of the triangle

$2 \sqrt{6}$

Hypotenuse of the triangle = 5

Height of the triangle = x

Therefore, According to Pythagoras Theorem,

${base}^{2} + {height}^{2} = {hypotenuse}^{2}$

$= > {(2 \sqrt{6)} }^{2} + {x}^{2} = {5}^{2}$

$= > 24 + {x}^{2} = 25$

$= > {x}^{2} = 25 - 24$

$= > {x}^{2} = 1$

$= > x = \sqrt{1}$

$= > x = 1$

Hence, the required value of <u>x is 1.</u>

7 0

2 years ago

What is 4 plus 8 and 3

jarptica [38.1K]

4+8+3 would be 15 because 4 plus 8 is 12 and 12 plus 3 is 15

Hope this helps

7 0

3 years ago

Read 2 more answers

Julie started solving the equation 3x=4+2(3-x)

BARSIC [14]

Answer:

x=2

Step-by-step explanation:

3x=4+2(3-x)

Distribute 2 to 3 and x

3x=4+6-2x

Add 2 to both side of the equal sign and combine 4 and 6

5x=10

divide both sides by 5

x=2

5 0

3 years ago