the temperature for the past 8 hours has been changing at the rate of-1.5 degrees each hour. the meteorologist predicts that the temperature will continue changing like this for the next 6 hours. the present reading is 0 degrees a. what was the temperature reading 7 hours ago? b. what temperature is predicted for 6 hours from now? c. when was the temperature reading 6 degrees? d. when is the temperature expected to be -8 degrees?

A. 7 hours ago the temperature was 7 * 1,5 = 10,5 degrees more, so if now it's 0, then it was 10,5 degrees 7 hours ago.

b. in six hours it will be 6 * 1,5 = 9 degrees less, so if it's 0 now, then it will be -9 degrees in 6 hours.

c. the temperature was reading 6 degrees 4 hours ago because:

x * 1.5 = 6           / ÷1.5 (both sides)
x = 4

d. -8 is expected to be in 5 hours and 15 minutes because:

x * 1.5 = 8         / ÷1.5 (both sides)
x = 5 1/3

It would be 3x+3 because the skate rental is for the day and she spent 3 hours skating. hope this !

Okay so n is going to represent our first number. since the second number of five times greater than n, the second number will be represented as 5n. for us to figure out the two  numbers we need to have  the value of n first. this is going to be done by adding the two numbers together, n and 5n. it can be simplified as 6n, which the problem states is equal to 72. divide 72 by 6n and you can solve for n.  n+5n=726n=72n=(72/6)n=12  now that we know the value of n, we have to multiply 5 times 12 which equals 60. so our two numbers/integers are 12 and 60