2 years ago

Help me please Solve the inequality s: 5s+2>7

Mathematics

1 answer:

charle [14.2K]2 years ago

3 0

Answer:

s>1

Step-by-ste:p explanation:

the internet :)

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3 years ago

The Johnson twins were born nine years after their older sister. This year, the product of the three siblings ages is exactly 18

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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

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

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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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3 years ago