Answer
-2/1
Step-by-step explanation:
rise is -2, going downs and it moves forward by 1
Answer:
3 student.
Step-by-step explanation:
From the first statement:
Let the total score be T
Let the total number of student be x
The average of the score = 72
Average = Tota score / number of student
72 = T/x
Cross multiply
T = 72x ..... (1)
Second statement:
One more student took the test and the average becomes 76 with the student having a score of 88.
Therefore,
Overall score = T + 88
Total student = x + 1
Average = 76
Average = overall score / total number of student
76 = (T + 88) /(x + 1)
Cross multiply
76(x + 1) = T + 88
Clear bracket
76x + 76 = T + 88
From equation 1
T = 72x
76x + 76 = 72x + 88
Collect like terms
76x – 72x = 88 – 76
4x = 12
Divide both side by the coefficient of x i.e 4
x = 12/4
x = 3
Therefore, the initial number of the student were 3.
Answer:
5/37 as a decimal is 0.13513513513514.
5/37 as a percentage is 13.5135%.
Step-by-step explanation:
<span>Diana is going camping with her family. Their campsite is 5/8 mile away. They walk at a steady speed of 2 1/2 miles per hr. How many minutes will It take them to get to the campsite.
alright so we know it takes an hour for them to travel 2 1/2 miles...
60minutes=1hr
60minutes=2 1/2 miles
now if you convert that fraction to a denominator of 1/8...
2 1/2=5/2=10/4=20/8
so in 6o minutes they travel 20/8 miles...
and if you divide 20/8 by 4 you get...
20/8/4=5/8
and so if you divided one side of the equation (60minutes=20/8) you have to divide the other side so...
60/4=20/8/4
and once you divide both sides you will get the answer...
15 minutes=5/8miles
Answer: 15 minutes
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