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posledela
3 years ago
7

Prove that 1 = -(-1)

Mathematics
1 answer:
siniylev [52]3 years ago
3 0

Answer:

-(-1) = 1 And Vice Versa

Step-by-step explanation:

Two Negatives cancel each other out. So, -(-1) have the multiplication of 2 negatives, which results in a positive 1.

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The scale for a map is 20 miles = 1/2 inch. The distance between two towns on the map is 3 3/4 inches. What is the actual distan
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Answer:

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Step-by-step explanation:

If 1/2 of an inch is 20 miles, we can assume that 1/4 of an inch is 10 miles, since half of 1/2 is 1/4 and 1/2 of 20 is 10.

Equipped with this information, we can divide 3 by 1/2 or multiply 3 by the reciprical, 2/1 to get how much we should multiply 20 by.

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Then we can multiply 10 by 3 and add that on our answer, since there are still 3/4s left and 1/4=10 miles.

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Hope this helps!

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