High School

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Sally is a 5'5" female and she states that she usually weighs 125 lbs. When she weighs in at the doctor's office today, she weighs 114 lbs. What is her percentage weight change?

1) +11
2) +8.8
3) -8.8
4) -11

Answer :

Final answer:

Sally's weight change is a -8.8% decrease from her usual weight. We calculate this by using the percentage change formula and substituting her usual and current weights.

Explanation:

To calculate Sally's percentage weight change, we use the formula for percentage change which is:

((New Weight - Original Weight) / Original Weight) × 100

Substituting Sally's weights into the formula gives us:

((114 lbs - 125 lbs) / 125 lbs) × 100

This simplifies to:

((-11) / 125) × 100

Then we calculate the numeric value to get:

(-0.088) × 100

So the answer would be:

-8.8%

Sally's weight loss represents a -8.8% change from her usual weight.

So, the final answer is -8.8%.

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Rewritten by : Barada