Question

Phil has 11 stamps of denominations $0.37 and $0.23. If the total value of the stamps is $3.23 how many $0.37 stamps does Phil have?

Answer 1

let phil has x number of stamps of $0.37 denomination
then he will be having (11-x) number of stamps of @0.23 denomination
in this case
\[{{0.37}\times{x}}+{{0.23}\times(11-x)} = 3.23\]
now solve this equation

Answer 2

Is it -0.0371??

Answer 3

no

Answer 4

\[{0.37x}-{0.23x}= 3.23 - 0.23\times11\]
\[0.14x = 3.23 - 2.53\]
\[0.14x = 0.7\]
\[x= {{0.7}\over{0.14}}=5\]

Answer 5

ohh I see!! Thanks ;))