A store advertises a 45% markdown on a dishwasher with a selling price of $906. Find the sale price. This is the greatest possible markdown that the store can discount the dishwasher without losing money.

The sale price is $498,30

Explanation:

Percentages

The selling (list) price on a dishwasher is $906.

The store advertises a 45% markdown on that price.

The markdown is calculated as follows:

45% of $906 = 45 * 906 / 100 = $407.70

The sale price (retail) is calculated as the selling price minus the markdown.

Thus, the sale price is:

$906 - $407.70 = $498,30

The sale price is $498,30

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.