Hi I don’t know if this is the right answer but I think the answer is 2/4 and 1/2
1: -60
2: -10
3: 400
4: -15
5: 18
Answer:(-5.6, -1.4)
Step-by-step explanation:
The answer is D. The temperature coefficient should be -1,5 as the temperature is dropping by the hour. Furthermore the starting temperature is 72 degrees so that should be added to the final answer. Therefore you get t = -1.5h + 72
Answer:


Step-by-step explanation:
Given
Let
f = Father's age
s = Son's age
We'll solve this question, while reading through the instructions
From the first statement;
f is 2 less than 7 times s.
This means

In two years time, the father will be f +2 and the son will be s + 2
So, their sum is:


Collect like terns


So, the equations are:

