15) During a 10-hour period in a day, the temperature dropped 30 degrees. How many degrees did the temperature dropped each hour?

44 degrees Celsius or 79 degrees Fahrenheit

Step-by-step explanation:

b

step-by-step explanation:

calculate the scale factor as the ratio of corresponding sides, image to original, that is

scale factor = = = = 1

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: