<h2>At time 9 : 00 AM they are 135 miles apart.</h2>
Step-by-step explanation:
Nancy leaves the house at 7:00 A.M. and averages 15 miles per hour. Mark leaves at 7:15 A.M. and averages 60 miles per hour.
Let the time after the start of Mark when they are 135 miles apart be t hours.
Time traveled by Nancy = t + 7:15 - 7:00 = t + 15 minutes = (t+0.25) hours
They are traveling in the opposite direction so,
Distance between them = Speed of Nancy x Time of travel of Nancy + Speed of Nancy x Time of travel of Nancy
135 = 15 x (t+0.25) + 60 x t
135 = 15t + 3.75 + 60t
75t = 131.25
t = 1.75 hours = 1 hour 45 minutes
Time = 7: 15 + 1 hour 45 minutes = 9 : 00 AM
At time 9 : 00 AM they are 135 miles apart.
Answer:
51/4
Step-by-step explanation:
To begin with you have to understand what is the distribution of the random variable. If X represents the point where the bus breaks down. That is correct.
X~ Uniform(0,100)
Then the probability mass function is given as follows.
Now, imagine that the D represents the distance from the break down point to the nearest station. Think about this, the first service station is 20 meters away from city A, and the second station is located 70 meters away from city A then the mid point between 20 and 70 is (70+20)/2 = 45 then we can represent D as follows
Now, as we said before X represents the random variable where the bus breaks down, then we form a new random variable , is a random variable as well, remember that there is a theorem that says that
Where is the probability mass function of X. Using the information of our problem
Answer: the answer is -3
Step-by-step explanation:
Answer:
price = 7.76/4 * 13
Step-by-step explanation:
Divide $7.76 by 4 to find the price of one glue stick.
Then multiply that by 13.
price = 7.76/4 * 13
The simplified expression of axaxbxb is a^2b^2
<h3>How to simplify the expression?</h3>
The expression is given as;
axaxbxb
Rewrite properly as:
a * a * b * b
Evaluate the product
a^2b^2
Hence, the simplified expression of axaxbxb is a^2b^2
Read more about expressions at:
brainly.com/question/723406
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