You have to cut off 200 centimeters. 1.25 meters is 125 centimeters so 325-125=200.
To find the mean, add all the values and then divide the sum by how many values you added. In this case, if the teacher drops the lowest score (68) that would leave 5 values. So,
90 + 83 + 88 + 74 + 80 = 415 < this is the total of all (minus the lowest) or Lorenzo's test scores. Now take this number, and divide it by 5 (because we added five tests together):
415 / 5 = 83 < this is the new mean, and also his percentage grade.
Answer: 83
Alternatively, you can list the grades from least to greatest, and cancel one value from each side until you get to the middle.
Hey there!
Let's create a systems of equations with x and y to find our numbers.
x=5y
x-y=1480
Let's plug our x value into the second equation.
5y=y=1480
4y=1480
y=370
Now we multiply this number by five as the first equation says to get our x.
x=1850
Our numbers are 1850 and 370.
I hope this helps!
The answer is a. Because at approximately 17 weeks the two lines meet.
Answer:
B
Step-by-step explanation:
