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yulyashka [42]
3 years ago
9

The temperature outside was -12 °. The temperature dropped 3 degrees. What is the new temperature?

Mathematics
2 answers:
tigry1 [53]3 years ago
5 0

Answer:

-15

Step-by-step explanation:

the new temperature since it went down

-12-3= -15

lawyer [7]3 years ago
4 0

Answer:

-15

Step-by-step explanation:

-12 dropped by 3

-12-3= -15

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AlladinOne [14]

Answer:

(1,6) & (7,0)

Step-by-step explanation:

y = -x + 7

y = -0.5(x - 3)² + 8

To solve the system, solve these two equations simultaneously

-x + 7 = -0.5(x - 3)² + 8

-x + 7 = -0.5(x² - 6x + 9) + 8

-x + 7 = -0.5x² + 3x - 4.5 + 8

0.5x² - 4x + 3.5 = 0

x² - 8x + 7 = 0

x² - 7x - x + 7 = 0

x(x - 7) - (x - 7) = 0

(x - 1)(x - 7) = 0

x = 1, 7

y = -1 + 7 = 6

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Since the system has two distinct solutions, the line and the curve meet at two distinct poibts9: (1,6) & (7,0)

8 0
3 years ago
The student council is selling cookies.They buy the cookies from the store for .55 cents each.They sell the cookies for $1 each.
aleksley [76]

Answer:

The percentage of the markup is 82%

Step-by-step explanation:

In this question, we are asked to calculate the percentage of mark up. This is simply calculating the percentage of the profit margin.

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mathematically, the profit margin is selling price - cost price

From the question, the selling price is $1 while the cost price is 55 cents

The profit margin is thus $1 - 55 cents = 45 cents

We now proceed to calculate the percentage profit

mathematically, that is profit/cost price * 100%

That would be 45 cents/55 cents * 100 = 9/11 * 100% = 81.8 approximately 82%

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2 years ago
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Answer:

Step-by-step explanation:

Use distributive property: a*(b +c) =a*b + a*c

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2 years ago
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Is 33/3 a natural, whole, integer, or rational number??????
Rasek [7]
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