Sally has twice as many dimes as nickels. The total value is $3.50. How many nickels and dimes does she have?

d=2n .05n+.1d=3.5 I multiplied the nickels and dimes by these values because that is their actual monetary value .05n=3.5-.1d multiply everything by 20 n=70-2d d/2=70-2d .5d+2d=70 2.5d=70 d=28 n=14 so there are ** 28 dimes and 14 nickels **checking this answer 28 dimes = $2.8 14 nickels = .70 2.8+.7=3.5

Answered by HannahN | 2024-06-10

2n=d nickel is 0,05 dollars dime is 0.1 dollars 0.05(n)+0.1(2n)=3.5 0.25n=3.5 n=14 d=2(14)=28 hope u can understand

Answered by a630061087 | 2024-06-10

Sally has 14 nickels and 28 dimes. This is determined by setting up equations based on their relationships and solving for each variable. The total value of the coins checks out, confirming the solution is accurate.
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Answered by HannahN | 2024-10-23