1.Provide a counterexample that shows the statement is false. Explain why the counterexample makes the statement false.

1 answer:

7 0

Counterexample: 2/10 and 3/8

The product of the two denominators is 10*8 = 80

The LCD is found by mulitplying the non common prime factors and the common prime factors raised to the higher power:

10 = 2*5

8 = 2^3

LCD = (2^3)*5 = 8 * 40.

This counterexample shows the statement is false.

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Fiona y sus amigas fueron a una tienda de batidos. Pidieron tres batidos de fresa y dos batidos de proteínas por un total de $ 2

jeka94

Answer:

Un batido de proteínas cuesta $ 5,25.

Step-by-step explanation:

El sistema de ecuaciones descrito al final del enunciado coincide con lo descrito al comienzo del mismo, de modo que podemos concentraron casi exclusivamente en la resolución del sistema en cuestión, la cual se describe a continuación:

Este es el sistema a resolver:

$x + 4\cdot y = 25,50$ (1)

$3\cdot x + 2\cdot y = 24,00$ (2)

Donde $x$ es el coste de un batido de fresa y $y$ corresponde al coste de un batido de proteínas:

1) Despejamos $x$ en (1):

$x = 25,50 - 4\cdot y$

2) Eliminamos $x$ en (2):

$3\cdot (25,50 - 4\cdot y) + 2\cdot y = 24,00$

$76,50 - 12\cdot y +2\cdot y = 24,00$

3) Simplificamos y despejamos $y$ :

$10\cdot y = 52,50$

$y = 5,25$

Un batido de proteínas cuesta $ 5,25.

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$\huge\text{Hey there!}$

$\huge\textsf{This equation/question should be easy to}\\\\\huge\textsf{to solve for because, we have everything you}\\\\\huge\textsf{you will need on your graph and somewhat in}\\\\\huge\textsf{the question because it already gave you the}\\\\\huge\boxed{\mathsf{x-intercept}}\huge\textsf{.}$
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