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a_sh-v [17]
3 years ago
13

I will mark brainliest!!! A barista mixes 12 lb of his secret-formula coffee beans with 15 lb of another bean that sells for $18

per lb. The resulting mix costs 20$ per lb. How much do the baristas secret formula beans cost per pound
Mathematics
2 answers:
FromTheMoon [43]3 years ago
8 0
$7 a pound. i know this bc i’m very intelligent
riadik2000 [5.3K]3 years ago
4 0

Answer:

The answer is the secret beans cost $22.5 per pound.

Step-by Step: Step 1: make an equation. 12 lbs is the secret formula, and the cost in unknown lets put that as x. So 12 lbs +15 lbs of $18 mix which is the coffee beans =$20 per lbs. So the total amount is is 27 lbs. Now lets right the equation. 12x+15(18)=20(27) solve for x normally 12x+270=540        12x=270      x=22.5 SO the final answer is $22.5 I hope this helped.

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Tomtit [17]

La ecuación que nos dice cuantas niñas hay en el colegio es:

A = x - c*m

¿Como encontrar una expresión para la cantidad de niñas?

Sabemos que hay un total de x estudiantes, definimos las variables:

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Entonces tenemos A + B = x

Tambien sabemos que los estudiantes estan divididos en c cursos, de tal forma que hay m niños por curso.

Entonces c por m es igual a la cantidad total de niños:

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Reemplazando esto en la ecuación de arriba podemos obtener:

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Esta es la ecuación que nos da el numero total de niñas en el colegio.

Sí quieres aprender más sobre ecuaciones, puedes leer:

brainly.com/question/18168483

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