Let's go through each problem step by step:
Problem 7: Max's Money
Max had an initial amount of money, [tex]\( s \)[/tex], which is 3 dollars. He spent all his money, so the amount he has left is 0 dollars. We can summarize the information as follows:
- Initial amount of money (s): 3 dollars
- Amount left after spending (money_left): 0 dollars
- Amount he spent (ser): 3 dollars
So, the answers are:
- The amount of money left: 0 dollars
- The amount Max spent (ser): 3 dollars
Problem 8: Temperature Drop
The initial temperature was 8°F. It dropped to -8°F, which indicates a change or drop in temperature.
To find the change in temperature:
- Initial temperature: 8°F
- Final temperature after the drop: -8°F
The change in temperature is:
[tex]\[ \text{Change in temperature} = \text{Final temperature} - \text{Initial temperature} \][/tex]
[tex]\[ \text{Change in temperature} = -8°F - 8°F = -16°F \][/tex]
Thus, the temperature dropped by 16°F.
Problem 3: Airplane's Descent
An airplane descended 4,000 feet before landing. To determine the height of the airplane above the ground before its descent, we consider the descent as a decrease in height.
Let's denote the initial height of the airplane above the ground as [tex]\( h \)[/tex]. The airplane descended 4,000 feet, and for it to land (reach ground level), we set the equation:
[tex]\[ h - 4,000 \text{ feet} = 0 \text{ feet} \][/tex]
By solving for [tex]\( h \)[/tex]:
[tex]\[ h = 4,000 \text{ feet} \][/tex]
So, the airplane was 4,000 feet above the ground before it started its descent.
In summary:
- For Problem 7: The amount of money left is 0 dollars, and Max spent 3 dollars.
- For Problem 8: The temperature dropped by 16°F.
- For Problem 3: The airplane was 4,000 feet above the ground before descending.
