A bike helmet which usually costs $57 is discounted 20%. About how much is the discount amount?
1 answer:
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Answer: First option.
Step-by-step explanation:
The complete exercise is attached.
Given the following equation:
The steps to solve it are:
1. Apply the Distributive property:
2. Add the like terms:
3. Subtract5 13 from both sides of the equation:
4. Divide both sides of the equation by 12:
To verify it, let's substitute into the equation:
Evaluating, we get:
Based on this, we can determine that Sarita's solution is correct, but she made an error in her verification (Observe that )
