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kari74 [83]
3 years ago
9

1. Oblicz:

Mathematics
1 answer:
dem82 [27]3 years ago
5 0

Step-by-step explanation:

1. Oblicz:

a) Liczbę o 15% mniejszą od 60

b) Liczbę, której 15% stanowi 60

c) Jakim procentem 60 jest 15

d) O ile %większa jest 60 od 15

2. Kasia kupiła buty na wyprzedaży przecenione o 20%. Ich cena początkowa to 180 zł. W domu sprzedała je siostrze zarabiając na tym 10% wartości. Ile zapłaciła Kasi siostra za buty?

3. Liczba, którą powiększymy o 20% daje nam 30. Jaka to była liczba?

4. Za dwie książki zapłacono 42 zł. Ile kosztuje droższa z nich, jeżeli jedna jest o 25 % tańsza od drugiej?

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Elena L [17]

Answer:

-0.16666666666666

Step-by-step explanation:

-.16

7 0
3 years ago
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insens350 [35]

Answer:

  A. ху

Step-by-step explanation:

Assuming your x'y' is xy with the variables to the first power, that is the term with the smallest x- and y-exponents. It is a factor of all the other terms so is the <em>greatest common factor</em> of all the terms.

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3 years ago
In ΔOPQ, o = 500 cm, p = 600 cm and q=380 cm. Find the measure of ∠P to the nearest 10th of a degree.
TEA [102]

Answer: 84.8°

Step-by-step explanation:

a²+b²+c²-2bc(cosA)

cosA = b² + c² - a² / 2bc

That is the formula we will be using.

Then, plug in our numbers.

cosP= 500² + 380² - 600² / 2(500)(380)

cosP= 34400/380000

cosP≈ 0.09052631

cos⁻¹(0.09052631) ≈ 84.81

∠P = 84.8°

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A zip line starts on a platform that is 404040 meters above the ground. The anchor for the zip line is 198198198 horizontal mete
lubasha [3.4K]

Answer:

I don't know if you mean 4000 and 1980 meters but the answer is they are 3120.

Step-by-step explanation:

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3 years ago
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If Justin can type 408 words in 4 minutes, how many words can he type per minute?
Pavel [41]

Answer:

102

Step-by-step explanation:

408 words / 4 min = 102 words per min

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3 years ago
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