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A girl has 5 more than twice as many pennies as she has dimes. Altogether she has $3.05. How many coins does she have? WORTH 18 POINTS

Respuesta :

tramserran

Pennies (0.01): 2x + 5

Dimes (0.10): x

Pennies + Dimes = Total

0.01(2x + 5) + 0.10(x) = 3.05

0.02x + 0.05 + 0.10x = 3.05

             0.05 + 0.12x = 3.05

                         0.12x = 3.00

                               x = 25

Pennies: 2x + 5 = 2(25) + 5   = 50 + 5   = 55

Answer: 25 dimes + 55 pennies = 80 total coins

sd277984

Step-by-step explanation:

Pennies (0.01): 2x + 5

Dimes (0.10): x

Answer: There are 55 pennies and 25 dimes

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