Answer:
Ariana has 7 dimes and 14 nickels
Explanation:
Nickel = 0.05
Dime = 0.10
1.40 ÷ 2 = 0.70
7 x 2 = 14
because Adriana has twice the nickels as dimes and half of the 1.40 is dimes so the other half is nickels.
nickels x 2 = 14
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