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DerKrebs [107]
3 years ago
8

Well here's the question for those who "couldn't see it" -_-

Mathematics
1 answer:
Ierofanga [76]3 years ago
5 0
I saw it before thankfully!

The systems of equation for each are
2r+b=8.40
3r+b=9.35

The amount charged for each breakfast is 6.50 and each refill costs .95.
We can prove this by adding 6.50 and .95*2 together to get a total of 8.40.
This works the same for the second system of equations as well.
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Erik and Nita are playing a game with numbers. In the game, they each think of a random number from zero to 20. If the differenc
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Given:
Choose a number between 0 and 20.
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If Eric wins. |x -7| < 10
|x-7| < 10 → -10 < x-7 < 10 → -10 + 7 < x - 7 + 7 < 10 + 7 → -3 < x < 17

Taking into account that the number must be given between 0 and 20.
0 <u><</u> x <u><</u> 20
-3 < x < 17

→ 0 < x < 16


7 0
4 years ago
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Una página de plástico diseñada para guardar cromos puede contener hasta 9 cartas. ¿Cuántas páginas se necesitarán para almacena
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Esto significa que debemos tener 58 páginas de plástico para contener las 517 tarjetas.´

<h3>¿Cuántas páginas se necesitarán para almacenar 517 tarjetas? </h3>

Sabemos que cada página puede almacenar hasta 9 cartas.

Entonces queremos ver cuantos grupos de 9 cartas hay en el conjunto de 517, para ver esto tomamos el cociente entre 517 y 9.

N = 517/9  = 57.44

Y no podemos tener un numero racional, así que debemos redondear al proximo número entero, que es 58.

Esto significa que debemos tener 58 páginas de plástico para contener las 517 tarjetas.

Sí quieres aprender más sobre cocientes:

brainly.com/question/3493733

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3 years ago
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100 = 10 to the power of what
Greeley [361]

Answer:

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Step-by-step explanation:

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