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Lostsunrise [7]
3 years ago
7

calculate the following showing populations the temperature in Johannesburg was 15° it drastically decreased by 17 °c what is th

e temperature now​
Mathematics
2 answers:
rusak2 [61]3 years ago
8 0

Answer:

-2 degrees Celsius.

Step-by-step explanation:

15 - 17 = -2

Valentin [98]3 years ago
3 0
The answer is -2 fooo
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The dimensions of the photo = 4 × 5 inch

Width of the frame = 1 inch

Outer perimeter of the frame = 53 inches

The width of the inside of the picture frame = 4•x

The height of the inside of the picture frame = 5•x

a. The equation for the outer perimeter of the picture frame is therefore;

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Which gives;

2 × (4•x + 2) + 2 × (5•x + 2) = 53

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A simplified equation for the outer perimeter of the picture frame is therefore;

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18•x = 53 - 8 = 45

18•x = 45

Therefore;

x = 45 ÷ 18 = 2.5

x = 2.5

The width and height of the picture frame are therefore;

Width = 4•x = 4 × 2.5 = 10

Height = 5•x = 5 × 2.5 = 12.5

Which gives;

Width = 10 inches

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The enlargement factor, sf, is given by the ratio of a side of the picture frame to a side of the picture as follows;

sf = 12.5/5 = 2.5

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Learn more about linear scale factors here:

brainly.com/question/19381630

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