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.
Answer:
-3x-6
Step-by-step explanation:
distribute the -3
Answer:
star
Step-by-step explanation:
Answer:
Step-by-step explanation:
The last three are irrational but I'm not sure about the first four.
Answer:
6 = 4 mins
Step-by-step explanation:
you have to take 200 and 50 and divide them
200 divided by 50 =4 and you have to tack mins to the end of it
id_k how many class rooms for number 5
and 7 i dk how many weeks there are therefore i cant solve them
