Bob has $1.15 in his wallet which contains 18 coins in nickels and dimes. Find how many nickles he has.
2 answers:
Answer:
well... if we don't know how many dimes then we can only guess how many nickels... since it is nickelS AND dimeS, it could be anything from 14 nickels and 2 dimes to 2 nickels and 17 dimes
Step-by-step explanation:
9514 1404 393
Answer:
13 nickels
Step-by-step explanation:
Let n represent the number of nickels Bob has. Then 18-n is the number of dimes, and the total value (in cents) is ...
5n +10(18-n) = 115
-5n +180 = 115 . . . simplify
65 = 5n . . . . . add 5n-115
13 = n . . . . . . . divide by 5
Bob has 13 nickels .
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Hope this helps!
:)
Probably D because it started out as negative and then kept going up to positive
Answer:
1.2≤5
2.14>3
Step-by-step explanation:
5. n≥-2+5
n≥3
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