26 x¼ 182
261 x
261
¼
182
26
x¼7 pennies
2 x¼ 2 7 ¼14 dimes
xþ 3 ¼ 7 þ 3 ¼10 nickels
- Letx¼the number of half dollars, 3x¼the number of quarters, and
xþ 6 ¼the number of dimes; then the value of the half dollars is 50x,
the value of the quarters is 25 3 x, and the value of the dimes is
10(xþ6).
50 xþ 25 3 xþ 10 ðxþ 6 Þ¼ 4 : 65 100
50 xþ 75 xþ 10 xþ 60 ¼ 465
135 xþ 60 ¼ 465
135 xþ 60 60 ¼ 465 60
135 x¼ 405
1351 x
1351
¼
405
135
x¼3 half dollars
3 x¼ 3 3 ¼9 quarters
xþ 6 ¼ 3 þ 6 ¼9 dimes
- Letx¼the number of 37c stamps and (12x)¼the number of 23c
stamps; then the value of the 37c stamps is 37xand the value of the
23 c stamps is 23(12x).
37 xþ 23 ð 12 xÞ¼ 3 : 74 100
37 xþ 276 23 x¼ 374
14 xþ 276 ¼ 374
LESSON 11 Solving Coin Problems 115