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lesantik [10]
3 years ago
5

After running 10 miles, David drank 2 bottles of water. His brother was thirstier and drank 2 1/2 times as much as David. What e

quation can be used to find out how many bottles of water David's brother drank?
Mathematics
2 answers:
ad-work [718]3 years ago
5 0
2 * 2.5 = 5, David’s brother drank 5 bottles of water. And the number of miles they ran is insignificant to the question.
r-ruslan [8.4K]3 years ago
3 0
2 x 2 1/2= 5 so the answer is 5
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Answer:

y = -x+3

Step-by-step explanation:

We have two points so we can find the slope

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We can use the slope intercept form of the equation

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Add 1 to each side

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3 years ago
¿por que en los mapas se respeta la misma escala? Ayudenme por favor esta es otra pregunta ¿qué pasaría si una parte del mapa se
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Answer:

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Podes ver en ese mapa la distancia entre tu posición y el lugar al que quieres ir, ahora, si la escala del mapa es conocida (por ejemplo 1cm = 1km) y constante, entonces vos podes medir la cantidad de centímetros entre tu posición y tu destino, y multiplicar ese numero por la escala, de esta forma conociendo la distancia real entre tu posición y tu destino.

Ahora, si la escala no es constante, entonces es imposible saber exactamente la distancia entre nuestra posición y nuestro destino, entonces este mapa no sirve realmente para ubicarnos/guiarnos, entonces no funciona como un mapa.

En el caso de que una parte este en una escala y otra parte en otra, en la primera parte un centímetro en el mapa equivaldría a una distancia X en la realidad, y en la otra zona un centímetro en el mapa equivaldría a una distancia Y en la realidad.

Donde X es diferente de Y, ahora, cuando queremos calcular la distancia entre dos lugares tendríamos que saber exactamente en que lugar se da el cambio de escala (para saber si usamos X o Y). Lo que hace que leer este mapa sea bastante mas difícil que leer un mapa normal.

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