Answer:
3.5 hours
Step-by-step explanation:
Given: Distance= 26.2 miles
Speed= 12 km/h
First lets convert the unit of speed from kmh to mph.
Remember, 1 mile= 1.609 km
∴ For speed of 12 km/h= 
Speed= 7.45 mph
Next, find time taken by Allan to complete a Marathon.
⇒ Time= 
∴ Time= 3.516 hours ≅ 3.5 h (nearest tenth)
∴ Allan took 3.5 hours to complete marathon.
Answer: The student enrollment the previous year was 630.
Step-by-step explanation: What we have currently is 504 students which represents 80 percent of the previous total number of students. We can conclude this because the question states clearly that the student enrollment dropped by 20 percent. In other words, we need to add back 20 percent to 80 percent to get the total 100 percent student enrollment from the previous year. The total number of students can be derived as follows;
If 504 equals 80 percent or (0.8), then 504 divided by 4 gives us 20 percent or (0.2)
20 percent times 5 equals 100 percent (or 0.2 times 5 equals 1)
Hence the calculation becomes;
(504/4) x 5 = Total
126 x 5 = 630
Therefore the total number of students enrollment the previous year was 630.
1The two equivalent equations will be
1. 
2. 
<h3>What is linear equation?</h3>
An equation between two variables that gives a straight line when plotted on a graph.
The required two equivalent equations are
The above equation has no repeating numbers and fulfill the criteria.
To know more about equations follow
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Answer:
Explanation
The capacity of the shelter is a constant. It is 80 people × 14 days.
That is an inverse relation: the product of the number of people and the number of days will be always the same.
As the number of people decreases the number of days that the food lasts increases, in a proportion such that the product of the days and the number of people is the same.
Thus, for 32 people the number of days the food lasts is x, such that:
- 32 people × x = 80 people × 14 days
Solving for x:
- x = 80 people × 14 days / 32 people
The food will last 35 days.
Answer:
x=80
Step-by-step explanation:
The angle of a line is 180*.
The equation would be (x+20)+x=180
Subtract 20 from both sides: 2x=160
Divide by 2: x=80
That's your answer!
I hope this helps!
