1. Joy has 3 times as many dimes as nickels. In all she has $1.40, how many coins of each type does she have? 2. Vicki has $2.80 in quarters and dimes. The number of dimes is 7 less than the number of quarters. Find the number she has of each kind. 3. A purse containing $3.20 in quarters and dimes has, in all, 20 coins. Find the number of each kind of coin.

At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get our expert's

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions.

A community for students.

1. Joy has 3 times as many dimes as nickels. In all she has $1.40, how many coins of each type does she have? 2. Vicki has $2.80 in quarters and dimes. The number of dimes is 7 less than the number of quarters. Find the number she has of each kind. 3. A purse containing $3.20 in quarters and dimes has, in all, 20 coins. Find the number of each kind of coin.

Mathematics
See more answers at brainly.com
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Get this expert

answer on brainly

SEE EXPERT ANSWER

Get your free account and access expert answers to this and thousands of other questions

1. To compute the value of dimes and nickels you create a system of equations. Let's assume we have one variable that represents dimes 'd', and one variable for nickels 'n'. Now, we know that the total amount of dimes and nickels is $1.40. We know that a dime is $0.1 and a nickel is $0.05. Now we form the first equation, 0.1d+0.05n=1.4 And now from the second condition, namely the fact that we have 3 times as many dimes as nickels, we form the equation, d=3n We replace that, in the first equation, 0.1(3n)+0.05n=1.4 0.3n+0.05n=1.4 0.35n=1.4 n=1.4/0.35=4 So we have 4 nickels. And from the fact that we have 3 times as many dimes, we compute. d=3*4=12 dimes. Proof: 12*$0.1+4*$0.05=$1.2+$0.2=$1.4 Do the same logic with the other problems. :)

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

Not the answer you are looking for?

Search for more explanations.

Ask your own question