Question

Can someone answer question 21

Answer 1

9pm- temp minus 3 degrees
10pm- minus 3 degrees
11pm- minus 3 degrees
12pm- minus 3 degrees
1am- minus 3 degrees
2am- minus 3 degrees/ lowest temperature

hope this helps it would be ten times more accurate with numbers but I don't make the questions

Answer 2

In between 9 pm and 2 am, there are 5 hours.

The temperature decreases 3 degrees per hour

h = hours
t₁ = original temperature
t₂ = temperature at the end

t₂ = t₁(-3h) is your equation.

t₂ = t₁(-3(5)
t₂ = t₁(-15) is your simplified answer

hope this helps