the department store sells logo t - shirts at an original price of $12.50. every month that a t - shirt…

the department store sells logo t - shirts at an original price of $12.50. every month that a t - shirt doesnt sell, the store reduces the price by 25%. brianna calculated the price after two reductions: $12.50−($12.50)(0.25)−($12.50)(0.25) = $6.25. what is briannas error?

the department store sells logo t - shirts at an original price of $12.50. every month that a t - shirt doesnt sell, the store reduces the price by 25%. brianna calculated the price after two reductions: $12.50−($12.50)(0.25)−($12.50)(0.25) = $6.25. what is briannas error?

Answer

Brief Explanations:

Brianna subtracted 25% of the original price twice. But the second 25% reduction should be calculated based on the price after the first reduction, not the original price.

Answer:

Brianna did not apply the percentage - off correctly for the second reduction. She should have first found the price after the first 25% reduction ($12.50\times(1 - 0.25)$) and then taken 25% off that new price, instead of taking 25% off the original price twice.