A temperature probe registers a temperature of -124° C. If the probe's temperature increases
by 8 °C per hour, after how many hours will it
be at a temperature of 4°C?

16 hours

Step-by-step explanation:

Given

per hour

Required

Determine the number of hours it gets to 4 degrees

Let the temperature at every hour, h be T.

So, we have:

To calculate the time it gets to 4 degrees. We first substitute 4 for T; then solve for h

Collect Like Terms

Solve for h

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2