Which equation would help determine the cost of 10 boolis? Chuse 1 answere (1) \( \frac{x}{10}=\frac{8}{\$ 19.60} \) (B) \( \frac{10}{\$ 19.60}=\frac{x}{8} \) (C) \( \frac{8}{10}=\frac{x}{\$ 19.60} \) (D) \( \frac{10}{8}=\frac{\$ 19.60}{x} \) (I) None of the above
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The Deep Dive
If we want to determine the cost of 10 boolis based on the cost of 8, we can set it up using proportions. The correct method to find the equivalent cost involves using option (B): \( \frac{10}{\$ 19.60} = \frac{x}{8} \). This allows us to find the cost for 10 boolis by scaling it up from the cost of 8. In real-world terms, this type of proportion is frequently used in budgeting scenarios. For instance, if a box of 8 snacks costs $19.60, you might want to quickly calculate how much it would cost to buy 10 or even 20 snacks. Setting up a simple proportion allows you to make those calculations quickly without a calculator!