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3 years ago

10

Joe's cell phone plan costs him $21 per month plus $3 for every 1 GB of data downloaded. What is the limit to the number of Gb's

he can download to stay within his monthly budget of $30?

1 answer:

DIA [1.3K]3 years ago

7 0

3 GB every month..... 21+3=24+3=27+3=30....so 3 GB

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Answer:

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Step-by-step explanation:

Given expression:

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$\textsf{Apply radical rule} \quad \sqrt{ab}=\sqrt{a}\sqrt{b}:$

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Replace 900 with 30² :

$\implies 12x \sqrt{30^2}\sqrt{x^2}\sqrt{y^4}\sqrt{z^6}$

$\textsf{Apply radical rule} \quad \sqrt{a^2}=a, \quad a \geq 0:$

$\implies 12x \cdot 30|x|\sqrt{y^4}\sqrt{z^6}$

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$\textsf{Apply exponent rule} \quad \sqrt{a^m}=a^{\frac{m}{2}}:$

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Simplify:

$\implies 360xy^2|xz^3|$

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Step-by-step explanation:

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