kanonhuffmanp3rnmy

27.10.2020 • 

Mathematics

Ringo bought a violin for $120. He spent $60 on new parts and fresh varnish before he sold it for $380 through his local newspaper. The advertisement cost $20.

a What were his total costs?

b. What was his total profit?

c. Calculate the profit as a percentage of the total cost.Write your answer to 2 decimal places.

Ответ:

sugandiwoodbine

23.06.2022

Mathematics

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7/12 miles

Step-by-step explanation:

20mph = 20/60 miles per minute = 1/3 miles per minute

1 min 45s = 1 min + 3/4 min = 7/4 min

1/3 x 7/4 = 7/12 miles

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