SOLUTION: kate saved some money. she saved 20-cent and 50-cent coins only. she had the same number of 20-cent and 50-cent coins. there were less then 12 coins but more than 5 coins altoge

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Question 564138: kate saved some money.
she saved 20-cent and 50-cent coins only.
she had the same number of 20-cent and 50-cent coins.
there were less then 12 coins but more than 5 coins altogether.
how much could she hAVE SAVED?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Since she saved the same number of each type
the total must be even. That means she could have
10, 8, or 6 coins, so she could have saved
+5%2A20+%2B+5%2A50+=+100+%2B+250+
+100+%2B+250=+350+
-------------------
+4%2A20+%2B+4%2A50+=+80+%2B+200+
+80+%2B+200+=+280+
--------------------
+3%2A20+%2B+3%2A50+=+60+%2B+150+
+60+%2B+150+=+210+
She could have saved $3.50, $2.80, or $2.10