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vova2212 [387]
3 years ago
9

There are about 76.9 million pet dogs and 87 million pet cats in the United States. The number of pet dogs is what percent less

than the number of pet cats?
Mathematics
1 answer:
Dmitriy789 [7]3 years ago
6 0

Answer:

The number of pet dogs are 11.61% less than the number of pet cats.

Step-by-step explanation:

Number of pet dogs in the United states = 76.9 million

Number of pet cats in the United states = 87 million

Difference between the number of cats and dogs :

=87 million- 76.9 million = 10.1 million

Percentage of number of pet dogs less than pet cats:

=\frac{\text{Difference}}{\text{Number of cats}}\times 100

=\frac{10.1 million}{87 million}\times 100=11.61\%

The number of pet dogs are 11.61% less than the number of pet cats.

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mariarad [96]

Answer:

Hay 200 botellas de 5 litros y 1000 botellas de 2 litros.

Step-by-step explanation:

Un sistema de ecuaciones lineales es un conjunto de dos o más ecuaciones de primer grado, en el cual se relacionan dos o más incógnitas.

Resolver un sistema de ecuaciones consiste en encontrar el valor de cada incógnita para que se cumplan todas las ecuaciones del sistema.

En este caso, las variables a calcular son:

  • x= cantidad de botellas de 2 litros.
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Una empresa aceitera ha envasado 3000 litros de aceite en 1200 botellas de dos y de cinco litros. Entonces es posible plantear el siguiente sistema de ecuaciones:

\left \{ {{2*x+5*y=3000} \atop {x+y=1200}} \right.

Existen varios métodos para resolver un sistema de ecuaciones. Resolviendo por el método de sustitución, que consiste en despejar o aislar una de las incógnitas y sustituir su expresión en la otra ecuación, despejas x de la segunda ecuación:

x= 1200 - y

Sustituyendo la expresión en la primer ecuación:

2*(1200 - y) + 5*y=3000

Resolviendo se obtiene:

2*1200 - 2*y + 5*y= 3000

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3*y= 600

y= 600÷3

y= 200

Reemplazando en la expresión x= 1200 - y:

x= 1200 - y

x=1200 -200

x= 1000

<u><em>Hay 200 botellas de 5 litros y 1000 botellas de 2 litros.</em></u>

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16. Carlos puts 0.3 of his monthly income into savings. What percent of his money
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Answer:

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To do so, convert it 0.3 into a fraction then multiply by 100;

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Your answer is going to be

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