Question

a pile of 140 sheets of paper is 1.82 cm thick.

A) How much thick would a pile of 245 sheets be?
B) How many sheets would make a pile 2.73 cm thick?​

Answer 1

Answer:

A) 3.185

B) 210

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Step-by-step explanation:

we'll use ratio method.

A)

number of sheets : thickness

140 : 1.82

245 : n

here, n is the thickness of a pile of 245 sheets

n =

$\frac{1.82 * 245}{140} \\= \frac{182*245}{14000}\\= \frac{13 * 49}{200} \\= \frac{637}{200}\\= 3.185$

hence, n = 3.185 cm

B)

140 : 1.82

n : 2.73

n =

$\frac{140*273}{182}\\= \frac{10*273}{13} \\= \frac{10*21}{1} \\= 210$

Answer 2

Answer:

Answer is attached above

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