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Anaika has found 25 coins this week, all quarters and dimes . If total worth of all coins is $4.00, how many of each coin does anakin have?

Anaika has found 25 coins this week all quarters and dimes If total worth of all coins is 400 how many of each coin does anakin have class=

Respuesta :

Answer:

10 quarters and 15 dimes

Step-by-step explanation:

25 = Quarters +  Dimes

Total worth = $4.00 =  0.25* Quarter +  0.1*Dimes

so...

25 = Q + D ,     D = 25 - Q

4 =  0.25*Q + 0.1 * (25 - Q)

4 = 0.25 * Q + 2.5 - 0.1*Q

1.5 = 0.15Q

Q = 10

D = 15