Question

(10 times 2 - 7% + 10) is to evaluate the expression.

a) 20.3

b) 19.3

c) 21.3

d) 18.3

Answer 1

The correct answer to evaluate the expression (10 times 2 - 7% + 10) is 29.93, none of the provided options match. The percentage needs to be converted to decimal before subtracting, and all steps followed according to the order of operations.

Step-by-step explanation:

To evaluate the expression (10 times 2 - 7% + 10), we follow the order of operations, which is parentheses first, then multiplication and division, and finally, addition and subtraction.

1. Multiply 10 times 2 to get 20.
2. Then subtract 7% from 20. Since 7% is equal to 0.07 in decimal form, we will subtract 0.07 from 20, which gives us 19.93.
3. Finally, we add 10 to 19.93, resulting in 29.93.

None of the provided options (a) 20.3, (b) 19.3, (c) 21.3, or (d) 18.3 matches the correct answer, which is 29.93. Therefore, the question may have a typo or an error in the options. If we consider the original question, (20 - 7% + 10) is indeed equal to 29.93, not any of the options given. It's essential to carefully check each step and ensure that the percentage is converted to a decimal before subtracting.