Question

Janson has quarters and dimes in his pocket. he counted 42 coins that added up to $7.50

Answer 1

Answer:

28 quarters and 5 dimes

7(Q)+5(D)

7(4)+5(10)

28Q      50D          Q=quarters  D=dimes

it would be more efficient to do the substitution method bc its faster and easier

Answer 2

I think Jason has 57