A collection of stamps consists of 22¢ stamps and 40¢ stamps. The number of 22¢ stamps is three more than four times the number

Question

2 years ago

6

of 40¢ stamps. The total value of the stamps is $8.34. Find the number of 22¢ stamps in the collection

1 answer:

Artemon [7] · Answer 1 · 2022-04-08T15:28:34+03:00

7 0

Answer:

27

Step-by-step explanation:

Let :

Number of 40¢ = x

Number of 22¢ = 4x + 3

Total stamp value = $8.34 = (8.34 * 100) = 834¢

40¢x + 22¢(4x + 3) = 834¢

40x + 88x + 66 = 834

128x = 834 - 66

128x = 768

x = 768 / 128

x = 6

Number of 22¢ stamp:

4(6) + 3 = 24 + 3 = 27