a collection of nickels and dimes is worth $9.45. if the number of dimes is doubled, the value is $16.65. find the number of each coin.

it could 14.28 but if its not that one then it has to be the 17 one. hope this ! : )

step-by-step explanation:

54 km / hours

step-by-step explanation:

we need to convert seconds to hours

60 seconds = 1 minutes

60 minutes = 1hour

15 m         60 second   60 minutes

  * *         = 54000 meters/ hour

second     1 minute             1 hour

now we need to convert meters to km

1000 m = 1 km

54000 m       1 km

*   = 54 km / hours

hour               1000m

no

explanation:

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i can answer this if i have the answer choices