A reservoir's water level decreased by over the summer due to evaporation. If the water level is currently at million liters, how much water was there initially?
Table of contents
- 1. Review of Real Numbers1h 28m
- 2. Linear Equations and Inequalities2h 18m
- 3. Solving Word Problems1h 22m
- 4. Graphing Linear Equations in Two Variables1h 50m
- 5. Systems of Linear Equations1h 25m
- 7. Factoring1h 30m
- 8. Rational Expressions and Equations2h 18m
- 9. Inequalities and Absolute Value42m
- 10. Relations and Functions1h 10m
- 11. Roots, Radicals, and Complex Numbers2h 33m
- 12. Quadratic Equations and Functions1h 23m
- 13. Inverse, Exponential, & Logarithmic Functions1h 5m
- 14. Conic Sections & Systems of Nonlinear Equations58m
- 15. Sequences, Series, and the Binomial Theorem Coming soon
3. Solving Word Problems
Percent Problem Solving
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
If sales tax on a \$36 pair of shoes is \$1.26, find the sales tax on a pair of shoes.
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Verified step by step guidance1
First, find the sales tax rate by dividing the sales tax amount by the price of the shoes. Use the formula: \(\text{Tax Rate} = \frac{\text{Sales Tax}}{\text{Price}}\). In this case, it is \(\frac{1.26}{36}\).
Next, express the tax rate as a decimal to understand the percentage of the price that is charged as tax.
Then, use the tax rate to find the sales tax on the \$250 pair of shoes by multiplying the tax rate by 250. The formula is: \(\text{Sales Tax on } 250 = \text{Tax Rate} \times 250\).
Set up the multiplication carefully to ensure accuracy, keeping the tax rate in decimal form and multiplying by 250.
Finally, interpret the result as the sales tax amount for the \$250 shoes, which completes the problem.
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