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Gelneren [198K]
3 years ago
12

If the weight of 12 sheets of thick paper is 40 gm, how many sheets

Mathematics
1 answer:
igor_vitrenko [27]3 years ago
6 0

Answer:

750 sheets

Step-by-step explanation:

2.5 kilograms=2.5*1000=2500 grams

2500/40=62.5 stacks-of-12-papers

62.5*12=750 sheets of paper

To check our work:

Let's set x as the weight of one sheet of paper.

12x=40 grams, x= 3 1/3 (three and one thirds) grams

3 and 1/3 *750= 2500 grams

2500 grams=2.5 kilograms

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Una recta con pendiente -2 ´pasa por el punto P(5, -1). La abscisa del punto Q que está en esa recta es 1. Encuentre la ordenada
oksian1 [2.3K]

Answer:

La ordenada de Q es 7.

Step-by-step explanation:

La ecuación de una recta es:

y = a*x + b

donde a es la pendiente y b es la ordenada al origen.

Para este problema, sabemos que la pendiente es -2

Entonces:

a = -2

y = -2*x + b

También sabemos que esta recta pasa por el punto (5, -1)

Esto significa que cuando evaluamos la ecuación en x = 5, y toma el valor y = -1

Si reemplazamos esos valores en la ecuación, obtenemos:

-1 = -2*5 + b

-1 = -10 + b

-1 + 10 = b

9 = b

Entonces la ecuación de la recta es:

y = -2*x + 9

Sabemos que el punto Q está en la línea, y la abscisa de este punto es 1.

Entonces este punto es Q (1, k)

donde k es la ordenada de este punto.

Porque nuestra línea también pasa por este punto, podemos concluir que cuando x = 1, y = k

Reemplazando eso en la ecuación tenemos:

k = -2*1 + 9 = -2 + 9 = 7

k = 7

La ordenada de Q es 7.

7 0
3 years ago
The vertices of quadrilateral PQRS are P(4, 5), Q(6, 6), R(9, 4), and S(7, 2). Write a paragraph proof to determine whether quad
Svetlanka [38]
The vector PQ is Q-P = (2, 1). The vector SR is R-S = (2, 2). One is not a multiple of the others, so the vectors are not parallel. In a parallelogram, these vectors would be identical. PQRS is not a parallelogram.

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3 years ago
What is 243.875 rounded to the nearest tenth hundredth ten and hundred
DedPeter [7]
200.000 for the nearest tenth hundred and 243.900 for the nearest hundred
4 0
3 years ago
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Tại sao nói thuế suất là yếu tố trọng tâm của các yếu tố cơ bản của luật thuế?
sesenic [268]

Answer:

ara ara

Step-by-step explanation:

6 0
3 years ago
TIME LIMITED
mrs_skeptik [129]

Answer:

<h2>B.   9</h2>

Step-by-step explanation:

|<-------------- 27 ------------>|

L--------------M----------------N

       18                MN

LN = LM + MN

27 = 18 + MN

MN = 27 - 18

<h2>MN = 9</h2>
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3 years ago
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