Marissa and jarod plan to purchase dvd players with a regular price of $199.99. the dvd players are on sale for 25% off. marissa starts by calculating 25% of $199.99. jarod calculates 75% of $199.99.
do both methods result in the same sale price? explain.

Marissa and Jarod plan to purchase DVD players with a regular price of $199.99. The DVD players are on sale for 25% off.
=> Marissa starts by calculating 25% of $199.99.
25% of 199.99 dollars
25% = 0.25
199.99 * .25 = 49.99 dollars
=> Jarod calculates 75% of $199.99.
75% = .75
199.99 * .75 = 149.99 dollars
Do both methods result in the same sale price? Explain.
The answer is NO. Marissa calculated for the discount which is 25% while Jarod calculated for the discounted price which is 75%

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.