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3 years ago

8) Jennifer has a collection of 1,600 coins. Of the coins, 40% are dated

Mathematics

1 answer:

Kitty [74]3 years ago

4 0

<h3>Answer: 400 (choice A)</h3>

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Explanation:

40% + 35% = 75% of the coins were either made before 1940, or made from 1940 to 1980. In other words, 75% of the coins were minted before 1980. This leaves 100% - 75% = 25% of the coins to being minted after 1980.

25% of 1600 = 0.25*1600 = 400 coins were made after 1980

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Slope intercept of (1,1) and (0,7)

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Answer:

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Step-by-step explanation:

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$m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}$

(Where $(x_{1}, y_{1})$ is the first point and $(x_{2}, y_{2})$ is the second point)

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