Question
Multiple Choice Question
Terrance used this expression to find the final price, in dollars, of a hat that is discounted 30% off the original price of $20.
20−(20×0.3)
Which of the following is an equivalent expression?
A.
20−0.7
B.
0.3(20)
C.
20−0.3
D.
0.7(20)
Answers
GPT-4o mini
To find an equivalent expression to \(20 - (20 \times 0.3)\), we first need to simplify the original expression:
1. Calculate \(20 \times 0.3\):
\[
20 \times 0.3 = 6
\]
2. Substitute this back into the original expression:
\[
20 - (20 \times 0.3) = 20 - 6 = 14
\]
Now, let's check which of the given options simplifies to an equivalent expression:
A. \(20 - 0.7\)
- This simplifies to \(20 - 0.7 = 19.3\) (not equivalent)
B. \(0.3(20)\)
- This simplifies to \(0.3 \times 20 = 6\) (not equivalent)
C. \(20 - 0.3\)
- This simplifies to \(20 - 0.3 = 19.7\) (not equivalent)
D. \(0.7(20)\)
- This simplifies to \(0.7 \times 20 = 14\) (equivalent)
So the correct answer is:
**D. \(0.7(20)\)**
1. Calculate \(20 \times 0.3\):
\[
20 \times 0.3 = 6
\]
2. Substitute this back into the original expression:
\[
20 - (20 \times 0.3) = 20 - 6 = 14
\]
Now, let's check which of the given options simplifies to an equivalent expression:
A. \(20 - 0.7\)
- This simplifies to \(20 - 0.7 = 19.3\) (not equivalent)
B. \(0.3(20)\)
- This simplifies to \(0.3 \times 20 = 6\) (not equivalent)
C. \(20 - 0.3\)
- This simplifies to \(20 - 0.3 = 19.7\) (not equivalent)
D. \(0.7(20)\)
- This simplifies to \(0.7 \times 20 = 14\) (equivalent)
So the correct answer is:
**D. \(0.7(20)\)**