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anonymous

  • one year ago

A stamp collector bought 160 stamps for $25.00. The purchase included 5¢ stamps, 15¢ stamps, and 25¢ stamps. The number of 15¢ stamps is three times the number of 5¢ stamps. How many of each type of stamp was purchased?

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  1. anonymous
    • one year ago
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    So the number 15 cent stamps is 3 x the number of 5 cent stamps

  2. sohailiftikhar
    • one year ago
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    so here we have 5cen+15cent+25cent=160

  3. sohailiftikhar
    • one year ago
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    let number of 5cent stamp is x so find x

  4. sohailiftikhar
    • one year ago
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    as 15 is 3 times of 5

  5. anonymous
    • one year ago
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    gottcha

  6. sohailiftikhar
    • one year ago
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    so 25 will be 5 times of 5cent

  7. sohailiftikhar
    • one year ago
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    now x+3x+5x=160

  8. anonymous
    • one year ago
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    ohh okay!

  9. sohailiftikhar
    • one year ago
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    want to try ?

  10. anonymous
    • one year ago
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    yeah i will try in a bit. i have to go do something! im going to see if i could get openstudy on my phone! thx

  11. sohailiftikhar
    • one year ago
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    np :)

  12. anonymous
    • one year ago
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    okay i have 5 minutes, so what do i need to plug in?

  13. anonymous
    • one year ago
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    i still need help :(

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