3 years ago

If the cost of 20 stamps is $9.80, how much will 1 stamp cost?

Mathematics

1 answer:

solmaris [256]3 years ago

6 0

Answer:

1 stamp will cost $0.49.

Step-by-step explanation:

20/9.8=1/x

cross product

20*x=9.8*1

20x=9.8

x=9.8/20

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