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Marta purchased screws and nails at a hardware store. She paid $0.10 for each screw and $0.05 for each nail. She purchased 15 screws but did not count the number of nails she purchased. She paid a total of $5.20 for the screws and nails. How many nails did Marta purchase?

Respuesta :

Answer:

104

Step-by-step explanation:

Parrain

Based on the total amount spent, we can infer that the number of nails Marta purchased was 74 nails.

Marta purchased 15 screws which cost $0.10 each. The cost is therefore:

= 15 x 0.10

= $1.50

The amount spent on nails is:

= 5.20 - 1.50

= $3.70

If each nail cost $0.05, the total nails bought is:

= 3.70 / 0.05

= 74 nails

In conclusion, 74 nails were purchased.

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