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defon
3 years ago
8

Lin has a small baking pans shaped like a rectangular prism.

Mathematics
2 answers:
Rzqust [24]3 years ago
7 0

Answer:

2 1/2

Step-by-step explanation:

( 11 1/4 ) / ( 4 1/2 ) = 2 1/2

( 2 1/2 ) = 5/2

Hope this helps!

lara31 [8.8K]3 years ago
6 0

Answer:

15 in^3.

Step-by-step explanation:

First convert the mixed numbers to improper fractions:

2 2/3 = 8/3, 3 3/4 = 15/4 and 1 1/2 =  3/2.

Volume = 8/3 * 15/4 * 3/2

= 360/24

= 15 in^3.

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Expressions. Simplify 2a + 8a
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Add 2 and 8.
2a+8a=10a
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10 % off the regular price. what is the discount amount any price?
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Not really 100% sure how to answer this, but if you would like to find the price of any item 10% off, you would just multiply the price by 0.9

EX: item cost $100

$100 x 0.9 = $90

Meaning the price of the item after the discount is applied would be $90

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A math teacher who likes baseball conducts a survey of 100 students. He asked the students about their favorite sport and about
galben [10]

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46%

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see image attached!

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3 years ago
Find the difference between 25.6 and 14.07
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Dentro de 11 años, la edad de Federico será la mitad del cuadrado de la que tenía hace 13 años. Calcula la edad de Federico.
Bad White [126]

Plantearemos una ecuación cuadratica, y resolviendola veremos que Federico tiene 21 años.

<h3>¿Como plantear la ecuación que debemos resolver?</h3>

Lo primero que debemos hacer es definir la variable que vamos a usar, en este caso usare:

F = edad de Federico.

Dentro de 11 años, la edad de Federico será:

F + 11

Hace 13 años, la edad de Federico era:

F - 13

Reemplazando eso en lo que el problema plantea, tenemos:

(F + 11) = 0.5*(F - 13)^2

Ahora podemos resolver esto para F.

F + 11  = 0.5*(F^2 - 26*F +169)

F + 11 = 0.5*F^2 - 13*F + 84.5

Movemos todo al mismo lado:

F + 11 - 0.5*F^2 + 13*F - 84.5 = 0

-0.5*F^2 + 14*F - 73.5 = 0

Ahora tenemos una ecuación cuadratica, la cual resolvemos usando la formula de Bhaskara:

F = \frac{-14 \pm \sqrt{(14)^2 - 4*(-0.5)*(-73.5)} }{2*(-0.5)}  =\frac{-14 \pm 7}{-1}

Esto nos da dos valores:

  • F = (-14 + 7)/-1 = 7
  • F = (-14 - 7)/-1 = 21

El problema con el primer valor, es que es inconsistente con el enunciado, ya que en ese caso, Federico hace 13 años tendría una edad negativa. Así que <u>descartamos la primer solución</u> y nos quedamos con la segunda.

F = 21

Federico tiene 21 años.

Sí quieres aprender más sobre ecuaciones cuadraticas, puedes leer:

brainly.com/question/17102578

7 0
2 years ago
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