For this case, the first thing we must know is the following definition:
d = v * t
Where,
d: distance
v: speed
t: time
Therefore, the total distance traveled in this case is:
(5.5) * (0.5) + (1.5) * p = 13.25
Rewriting:
2.75 + 1.5p = 13.25
Clearing the value of p we have:
p = (13.25-2.75) / (1.5)
p = 7
Answer:
an equation representing this situation is:
2.75 + 1.5p = 13.25
DeAngelo's rate for the last 1.5 hours of his run is 7 miles per hour
Answer:
true
Step-by-step explanation:
by the help of compass and scale we can form a traingle.
Answer: 25%
Step-by-step explanation: Since we know that David has 20 pencils in all and that 5 of the pencils he has are green, we have the fraction 5/20 which represents the 5 green pencils out of all of his pencils.
Now, remember the problem is looking for a percent so we need to write 5/20 as a percent in order to answer the question.
To write a fraction as a percent, first remember that a percent is a ratio of a number to 100. So to write 5/20 as a percent, we need to find a fraction equivalent to 5/20 that has a 100 in the denominator. We can do this by setting up a proportion.

Now, we can use cross products to find the missing value.
So we have 5 times 100 which is 500 <em>is equal</em> <em>to</em> 20 times n or 20n.
So we have 500 = 20n.
Now, dividing both sides of the equation by 20, we have <em>25 = n</em>.
So 5/20 is equal to 25/100 or 25%.
Therefore, 25% of David's pencils are green.