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strojnjashka [21]
3 years ago
7

Hannah has only nickels and dimes in her wallet she has a total of $2.50 and a total of 30 coins how many nickels does she have?

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0
She has 10 nickels
She has 20 dimes

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<span>5-2x=15

</span>5-2x=15 \\  \\ -2x= 15-5  \\  \\ -2x= 10 \\  \\ x=  \dfrac{10}{-2} \to  \boxed{x= -5}<span>
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