Peggy had 3 times as many quarters as nickels. she had 1.60 in all. how many nickels and how many quarters did she have

It doesn't seem to work with $1.60 total.
It DOES work with a $16.00 total.

A) 3n = q
A) 3n -q = 0
B) .05n + .25q = 16.00
Multiplying equation A by .25
A) .75n -.25q =0
B) .05n + .25q = 16.00
.80n = 16.00
20 nickels = 1.00
60 quarters 15.00

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)