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vodomira [7]
3 years ago
10

Heeeelllppppp.................,..................

Mathematics
1 answer:
Tom [10]3 years ago
4 0

Answer:

1. number of data values

2. sum of data values

Step-by-step explanation:

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You can easily test this if you know that (6, -10) corresponds to (X, Y). Knowing this, you can: 

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Answer:

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Second brand of antifreeze: 9 gallons

Step-by-step explanation:

Let's call A the amount of  first brand of antifreeze. 20% pure antifreeze

Let's call B the amount of second brand of antifreeze. 70% pure antifreeze

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               +

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-0.5A = -10.5

A = \frac{-10.5}{-0.5}

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