beesbutterflyqueen
20.04.2021 •
Mathematics
Mr. Chang buys supplies for the school store. He bought 300 pencils on sale for $10. During the first three months of school, he sold 200 pencils and made $50. The other pencils were thrown away because they were broken. How much profit did Mr. Chang make on the pencils?
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Ответ:
$40
Step-by-step explanation:
He bought the pencils for $10, so his expense was $10. He sold the pencils for $50, and $50 - $10 is $40, and that's the total amount of money he made.
Ответ:
There are six trigonometric ratios, sine, cosine, tangent, cosecant, secant and cotangent.
Step-by-step explanation: