2 years ago

Mrs.James has 22 students in her class.Mr.Williams has 24 students in his class.how many students are I'm the two class?

Mathematics

2 answers:

Stella [2.4K]2 years ago

4 0

Add 22 and 24 together
You get 46

svlad2 [7]2 years ago

3 0

Are i'm the two class?

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Answer: The age of the twins is 10 years.

Step-by-step explanation:

Suppose the age of older sister be x

Let the age of twins sister be x-9, as they are born after 9 years.

Product of their ages be

$x(x-9)(x-9)\\\\=x(x^2-18x+81)\\\\=x^3-18x^2+81x$

Sum of their ages will be

$x+x-9+x-9\\\\=3x-18$

According to question,

$1861+3x-18=x^3-18x^2+81x\\\\x^3-18x^2+81x-3x+18-1861=0\\\\x^3-18x^2+78x-1843=0\\\\x=19$

So, Age of older sister will be 19 years.

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Hence, the age of the twins is 10 years.

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