Screw this
Algebra
Level
2
A merchant sold an equal number of 5-cent and 10-cent screws. If the total cost of the screws was $3.00, what was the total number of screws sold?
50
40
30
80
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Since the number of 5-cent screws and 10-cent screws are equal. Let x = number of screws
0.05x+0.1x =3
.15x = 3
x = 20
Total number of screws sold = 20 five-cent screws + 20 ten-cent screws = 40 screws