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Mathematics, 29.07.2021 21:50 taterbuglee2003
Please Help! Thanks in Advance :)
Larry has 4-cent stamps and 9-cent stamps, which he can combine to produce various amounts of postage. For example, he can make 40 cents by using four 9-cent stamps and a 4-cent stamp, or by using ten 4-cent stamps. However, there are some amounts of postage he can't make exactly, such as 10 cents.
What is the largest number of cents that Larry cannot make exactly from a combination of 4- and/or 9-cent stamps?
Explain how you know your answer is correct. (You should explain two things: why Larry can't make the amount of your answer, and why he can make any bigger amount.)
Hint(s):
Make a table of nonnegative integers, and circle the amounts Larry can make. Do you see any patterns? (Once you start noticing patterns, you may want to redesign your table!)
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Answers: 3
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Please Help! Thanks in Advance :)
Larry has 4-cent stamps and 9-cent stamps, which he can combine t...
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