Ashley has some pennies and some nickels. She has at most 22 coins worth a minimum of $0.78 combined. If Ashley has 4 pennies, d etermine the minimum number of nickels that she could have. If there are no possible solutions, submit an empty answer.
2 answers:
Answer:
The minimum number of nickels that she could have is 15
Step-by-step explanation:
Let x represent the number of nickels Ashley has. If she has 4 pennies and has at most 22 coins, then
→ x + 4 <= 22
→ x <= 18 (1)
Her coins worth a minimum $0.78. Also, it is known that 1 dollar is equal to 100 cents and 1 nickel is equal to 5 cents.
→ (x * 5) + 4 >= 78
→ 5x >= 74
→ x >= 14.8 (2)
If we combine the equation 1 and 2:
14.8 <= x <= 18
The minimum value of x is 15
Answer:
18 nickels
Step-by-step explanation:
4 pennies = $0.04. 22 coins minus the 4 pennies = 18. So, 18 nickels is equal to $0.90. Because she has at most 22 coins and they're worth at least $0.78 then $0.94 would make since.
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