So here is how you'll get the answer. Let x be the number of quarters in the jar. Then 53-x is the number of nickels in the jar. <span>We also know .25x + 0.05 (53-x) = 10.25 </span>So next, we solve for x. .25x + 2.65 - 0.05x = 10.25 0.2x +2.65 = 10.25 0.2x = 10.25 -2.65 0.2x = 7.40 x =37 Therefore, there are 37 quarters in the jar. 53-37 is 16. So there are 16 nickels in the jar. Hope this answer helps.