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3 years ago

9

Of the two bottles shown of sunblock shown, which is the better buy? Explain. Sunblock 1: 4 ounce bottle $8.49 Sunblock 2: 5 oun

ce bottle $10.29

1 answer:

Pepsi [2]3 years ago

6 0

8.49/4 = 2.1225

Sunblock 1 costs $2.12 per ounce of sunblock.

10.29/5 = 2.058

Sunblock 2 costs $2.06 per ounce of sunblock.

Sunblock 2 is the better buy because it is cheaper ounce-per-ounce.

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$\bf (x-2)^{2\div 3}=49\implies (x-2)^{\frac{2}{3}}=7^2\implies \stackrel{\textit{raising both sides by }\frac{3}{2}}{\left( (x-2)^{\frac{2}{3}} \right)^{\frac{3}{2}}=(7^2)^{\frac{3}{2}}} \\\\\\ (x-2)^{\frac{2}{3}\cdot \frac{3}{2}}=7^3\implies (x-2)^1=7^3\implies x=7^3+2\implies x=345$

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JulsSmile [24]

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morpeh [17]

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(16,O0)

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