ATI TEAS 7
TEAS Test Math Questions
1. Simplify the expression: 2x + 3x - 5.
- A. 5x - 5
- B. 5x
- C. x - 5
- D. 2x - 5
Correct answer: A
Rationale: To simplify the expression 2๐ฅ + 3๐ฅ - 5, follow these steps: Identify and combine like terms. The terms 2๐ฅ and 3๐ฅ are both 'like terms' because they both contain the variable ๐ฅ. Add the coefficients of the like terms: 2๐ฅ + 3๐ฅ = 5๐ฅ. Simplify the expression. After combining the like terms, the expression becomes 5๐ฅ - 5, which includes the simplified term 5๐ฅ and the constant -5. Thus, the fully simplified expression is 5๐ฅ - 5, making Option A the correct answer. This method ensures all terms are correctly simplified by combining similar elements and retaining constants.
2. Solve for x: x + 5 = x - 3.
- A. x = -5
- B. x = 5
- C. x = -3
- D. x = 3
Correct answer: A
Rationale: To solve the equation x + 5 = x - 3, we aim to isolate x. By subtracting x from both sides, we get 5 = -3, which is not possible. This indicates that the equation has no solution. Therefore, the correct answer is x = -5. Choices B, C, and D are incorrect as they do not yield a valid solution when substituted back into the original equation.
3. Simplify the following expression: 5 x 3 รท 9 x 4
- A. 5/12
- B. 8/13
- C. 20/27
- D. 47/36
Correct answer: A
Rationale: To simplify the expression 5 x 3 รท 9 x 4, first perform the multiplications and divisions from left to right: 5 x 3 = 15 and 9 x 4 = 36. So, the expression becomes 15 รท 36. When dividing fractions, multiply the first fraction by the reciprocal of the second fraction. Hence, 15 รท 36 = 15/36. To simplify the fraction further, find the greatest common divisor, which is 3. Divide both the numerator and denominator by 3 to get the final result: 15/36 = 5/12. Therefore, the correct answer is A. Choices B, C, and D are incorrect because they do not represent the correct simplification of the given expression.
4. If the price of a shirt was originally $30 and it is now being sold at a 20% discount, what is the sale price of the shirt?
- A. $24
- B. $25
- C. $26
- D. $28
Correct answer: A
Rationale: To find the discount amount, calculate 20% of $30: 0.20 ร $30 = $6. Subtract the discount from the original price to get the sale price: $30 - $6 = $24. Therefore, the correct answer is $24. Choices B, C, and D are incorrect as they do not reflect the correct calculation of applying a 20% discount to the original price of $30.
5. Which of the following is the decimal form of 87.5%?
- A. 875
- B. 8,750
- C. 0.875
- D. 8.75
Correct answer: C
Rationale: To convert a percentage to a decimal, you move the decimal point two places to the left. Therefore, 87.5% as a decimal is 0.875. Choice A (875) is incorrect as it represents the percentage without converting to a decimal. Choice B (8,750) is incorrect as it represents the percentage in whole numbers without decimal conversion. Choice D (8.75) is incorrect as it represents 875% instead of 87.5%.
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