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 27m
- 2. Linear Equations and Inequalities2h 26m
- 3. Solving Word Problems1h 23m
- 4. Graphing2h 30m
- 5. Systems of Linear Equations1h 25m
- 7. Factoring1h 30m
- 8. Rational Expressions and Equations2h 25m
- 9. Roots and Radicals1h 21m
- 10. Quadratic Equations2h 23m
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, identify the sales tax rate by dividing the sales tax amount by the price of the shoes. Use the formula: \(\text{Sales Tax Rate} = \frac{\text{Sales Tax}}{\text{Price}}\).
Substitute the known values into the formula: \(\text{Sales Tax Rate} = \frac{1.26}{36}\).
Calculate the sales tax rate (you can leave it as a fraction or decimal for now).
Next, use the sales tax rate to find the sales tax on the \$250 pair of shoes by multiplying the rate by 250: \(\text{Sales Tax on } 250 = \text{Sales Tax Rate} \times 250\).
Perform the multiplication to find the sales tax amount on the \$250 shoes (again, you can leave the answer in terms of the rate times 250 without final calculation).
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