Question

Nick had 67.50 in pennies and dimes. If there were 150 more pennies than dimes, how many dimes dos he have?

Answer 1

let n for nick=$.05, p for a penny=.01
.01p+.05n=$67.50
p=150+n
Subtitution:
p=150+n
.0.1(150+n)+.05n=$67.50

Answer 2

can you do from now?

Answer 3

very easy

Answer 4

yes thank u

Answer 5

you are welcome

Answer 6

thank you for medal

Answer 7

sorry I look wrong!
penny and dime not penny nick
let d for dime=$0.10d
p for a penny=.01p
.01p+.10d=$67.50
p=150+d
Subtitution:p=150+n
.01(150+d)+.10d=$67.50
$1.5+.01d + .10d=$67.50
0.11 d =$67.50 -$1.5
d=$66/0.11
d=600cents
Subtitution: d=600
.01p+.10(600)=$67.50
.01p+.10(600)=$67.50

Answer 8

.01p+.10(600)=$67.50
.01p +60 =$67.50
.01p =$67.50-60
p= 7.5/0.1
p= 750 cents
check: .01(750)+.10(600)=$67.50
$7.5 + $60.00 = $67.50
Nick have : $7.5 or 750 penny
600 cents or $60.00 Dime