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slega [8]
3 years ago
6

From 12:00 midnight to 6:00 a.m., the temperature decreased by 12°C. If the original temperature was 12°C, which expression can

be used to represent this situation? ​
Mathematics
2 answers:
Helga [31]3 years ago
7 0

Answer:

12 - 12

Step-by-step explanation:

If the temperature was originally 12°C it decreases by 12° then 12 - 12.

From 12:00 midnight to 6:00 am, the  temperature decreased by 12°C. If the original temperature was 12°C.

Question: Which expression can be used to represent this situation?

12:00 midnight temperature = 12 °C.

6:00 am temperature decreased  by 12 °C.

So 12 - 12.

Hope this helps (sorry if I'm wrong)

xxMikexx [17]3 years ago
5 0

Answer:

12-12

Step-by-step explanation:

hope this helps tell me if it's right

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Ignore the writing but someone help please
vazorg [7]

Part (a)

The picture alone, without the frame, is 16 by 20

When accounting for the frame, the larger rectangle is 16+2x by 20+2x

We add up all four sides to get the perimeter

(16+2x)+(20+2x)+(16+2x)+(20+2x)

8x+72

or you can use this perimeter of a rectangle formula

P = 2(L+W)

P = 2(20+2x+16+2x)

P = 2(4x+36)

P = 8x+72

Answer: 8x+72

=========================================

Part (b)

Multiply the length and width to find the area of the rectangle.

area = length*width

A = L*W

A = (20+2x)*(16+2x)

A = 20(16+2x) + 2x(16+2x)

A = 320+40x + 32x + 4x^2

A = 4x^2 + 72x + 320

Answer: 4x^2 + 72x + 320

=========================================

Part (c)

Plug x = 2 into the perimeter equation found in part (a)

P = 8x+72

P = 8*2+72

P = 16+72

P = 88

Now plug x = 2 into the area equation found in part (b)

A = 4x^2 + 72x + 320

A = 4(2)^2 + 72(2) + 320

A = 4(4) + 72(2) + 320

A = 16 + 144 + 320

A = 160+320

A = 480

-------------

Answers:

Perimeter = 88 inches

Area = 480 square inches

3 0
2 years ago
4x - 3 = 5 X=? can anyone tell me please
vekshin1

Answer:

x = 2

Step-by-step explanation:

4x - 3 = 5

4x = 8

x = 8/4

x = 2

------------

4 (2) - 3 = 5

8 - 3 = 5

5 = 5

answer: x = 2

7 0
3 years ago
1. _____ any push or pull on an object
borishaifa [10]
1. Force any push or pull on an object.             2. Displacement is an object changing position over time.
5 0
3 years ago
Please help me I need to turn in tomorrow please!!!!
mr Goodwill [35]
A -8 hope this helps good luck !
4 0
3 years ago
Read 2 more answers
Jaffrey was offered a job at $950 per month with a $22 increase every month for the first year. How much money can he make in th
iogann1982 [59]

Answer:

Jaffrey will end up making $1214 in the first year

Step-by-step explanation:

950 + 12(22) = ?

first lets find out what 12 * 22 =?

12 * 22 = 264

now lets add 264 to 950

264 + 950 = 1214

5 0
3 years ago
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