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4 years ago

Write and solve a division expression you could use to find how many nickels are in $7

Mathematics

2 answers:

Juli2301 [7.4K]4 years ago

4 0

A nickel is 5 cents.

7 ÷ .05

There are 140 nickels in $7.

grandymaker [24]4 years ago

4 0

Well, a nickel is $0.05, so the equation would be 7/0.05, and I believe the answer is 140 nickels.

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$a_1=5\\\\a_n=a_{n-1}-3\\\\a_2=a_1-3\to a_2=5-3=2\\\\a_3=a_2-3\to a_3=2-3=-1\\\\a_4=a_3-3\to a_4=-1-3=-4\\\\Answer:\ \{5,\ 2,\ -1,\ -4\}$

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