3 years ago

Find the three geometric means between 15 and 1215.

Mathematics

1 answer:

irina [24]3 years ago

6 0

Hello,

g_m(15,1215)=√(5*1215)=9√15≈77,942286340....
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Answer: Variable: y= Number of sour straws.

Inequality: 7.50+1.50y ≤ 15

Solution: y ≤ 5

Step-by-step explanation:

Let y= Number of sour straws.

Cost for nachos = $7.50

Cost per sour straw = $1.50

Total cost = 7.50+1.50y

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Total cost must be less than orequal to the money he has.

So required inequality: 7.50+1.50y ≤ 15

Subtract 7.50 from both sides

$1.5y\leq 7.5\\\\\Rightarrow\ y\leq\dfrac{7.5}{1.5}\\\\\Rightarrow\ y\leq 5$

He can buy at most 5 sour straws.

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