One day a gir bought 20 first class stamps and 10 postcard stamps for $11.10 another day she spent $47.30 on 80 first class stam
ps and 50 postcard stamps find the cost of each type of stamp
1 answer:
eleventeen i nneeeeed pointss and 20 chracterssss
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Answer:
E = \frac{25M}{L}
Step-by-step explanation:
To solve this, we can multiple each side by E and then divide each side by L:

From definition we have:

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Step-by-step explanation: