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ss7ja [257]
4 years ago
14

A hockey stick costs $56.55. Which equation represents the cost, c, of n sticks?

Mathematics
1 answer:
zhenek [66]4 years ago
4 0
C = 56.55n <== this is ur equation
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The vertices of a triangle are A (0,0), B (3, 4) and C (-4,5). Find the length of each side. ​
Sphinxa [80]

Answer:

AB = 5 units

BC = 5\sqrt{2} units

AC = \sqrt{41} or about 6.4 units

Step-by-step explanation:

distance formula:  square root of the sum of the difference of the y-values and the difference of the x-values

ex, dAB = √(4-0)² + (3-0)²

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A bakery sells a pack of peanut butter cookies for $3 and a
Westkost [7]
F(x,y) =3x + 5y (hope this helps )
5 0
3 years ago
8 x 2/5 in simplest form
GalinKa [24]

Answer:

3 1/5

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3 0
3 years ago
Read 2 more answers
Evidencia de aprendizaje Se desea obtener 80 kilogramos de café molido mezclando café arábico de S/18 el kilogramo y café torrad
SIZIF [17.4K]

Answer:

50kg de café torrado

30kg de café arábico

Step-by-step explanation:

Queremos obtener un total de 80kg de café molido.

Se utilizarán:

Café arábico, que cuesta $18 el kg

Café torrado, que cuesta $10 el kg

Queremos que el precio, por kilo, de la mezcla de 80kg sea $13.

Ok, primero debemos definir las variables:

Definamos:

x = cantidad de café arábico usado

y = cantidad de café torrado usado.

Entonces, como la mezcla deberá tener 80kg en total, tenemos:

x + y = 80kg

Y el costo total de esta mezcla será:

x*$18 + y*$10

Si lo dividimos por el peso total, tendremos el costo por kilo, que es:

(x*$18 + y*$10)/80kg

Y queremos que esto sea igual a $13, entonces tenemos la ecuación

(x*$18 + y*$10)/80kg = $13

Ok, ahora tenemos dos ecuaciones, es decir, tenemos un sistema de ecuaciones:

x + y = 80kg

(x*$18 + y*$10) = $13*80kg

(donde reescribimos levemente la segunda ecuación)

Ok, para resolver este sistema trataremos de reemplazar variables, para ello, el primer paso es aislar una de las variables en una de las ecuaciones.

Aislemos x en la primera:

x = 80kg - y

Ahora reemplazamos esto en la otra ecuación:

(x*$18 + y*$10) = $13*80kg

(( 80kg - y)*$18 + y*$10) = $13*80kg

Ahora podemos resolver esto para la variable y:

$18*80kg - $18*y + $10*y = $13*80kg

$18*80kg - $13*80kg = $18*y - $10*y

($18 - $13)*80kg = ($18 - $10)*y

$5*80kg = $8*y

($5*80kg)/$8 = y

50kg = y

Se usan 50kg de café torrado.

y como:

x + y = 80kg

x = 80kg - y

x = 80kg - 50kg = 30kg

Entonces los 30kg restantes serán de café arábico.

y la estrategia utilizada fue el remplazo de variables.

6 0
3 years ago
(10 POINTS AND BRAINLIEST FOR BEST)
kramer

Answer:

4 + -6

Step-by-step explanation:

There are four positive counters, and there are 6 negative counters in a group. So I came to the conclusion they are being added.

4 + -6

Hope this helped.

LunarRose3

5 0
4 years ago
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