1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Anastasy [175]
3 years ago
6

Lorenzo’s test scores are 90, 83, 88, 74, 68, and 80. If the teacher drops the lowest test score before calculating the mean, wh

at would the new mean be? Round to the nearest tenth, if necessary.
Mathematics
1 answer:
madam [21]3 years ago
8 0
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. 
You might be interested in
Can anyone help me with this math equation plsss?
Cerrena [4.2K]

Answer:

5.265

Step-by-step explanation:

3 0
3 years ago
X/2=4/8 wut?;-; i dont get ittttt :/
Alexandra [31]
Here
Pls mark brainliest

6 0
3 years ago
Read 2 more answers
Find the measure of each angle that is labeled on the diagram shown below.
Elza [17]
Lets take it in order:

1) 90 deg because the angle right next to it is a right angle
2) 128 deg becasue of the angle directly across from it
3) x = 180 - 128 = 52 deg
4) 180 = 90 + 52 + x so x = 180 - 90 - 52 = 38
5) 180 = 38 + x so x = 180 - 38 = 142
6) Same as 4
7) Same as 5

Check my math, as I just did it in my head 
4 0
3 years ago
Read 2 more answers
Guys, please please help me
agasfer [191]

Answer:

508.68

Step-by-step explanation:

Upper and lower surfaces of the cylinder:

\pi r^{2} =9\pi \\S=2*9\pi =18\pi

Side area of the cylinder:

S=sh=\pi dh=6\pi *3*8=144\pi

The total area:

S=114\pi +18\pi =162\pi =162*3.14=508.68

5 0
3 years ago
Mark makes $60 for every six hour shift he works. How much will he make if he works an eight hour shift
Illusion [34]

Answer:

Mark will make $80 if he works an eight-hour shift.

Step-by-step explanation:

For every six hour shift he works, Mark makes $60

This implies that for every hour, he makes $10 ($60/6)

Therefore, for working an eight-hour shift, Mark will make $80 ($10 * 8) or ($60/6 * 8).

We can conclude that Mark's employer pays him $10 per hour.

This hourly rate can be used to work out how much Mark will earn if he works for a month or a year, as the case may be.

7 0
2 years ago
Other questions:
  • Find the surface area of each triangular prism
    8·1 answer
  • The length of brook trout caught in a certain colorado stream has a mean of 14 inches and a standard deviation of 3 inches. what
    5·1 answer
  • What is theoretical probability of rolling a number greater than 4 on a standard number cube
    8·1 answer
  • Can anyone assist me on this​
    9·1 answer
  • Which is equivalent to 15.8 time 300
    13·1 answer
  • For some job the rate will be set by a minimum specified in the fair labor standards act
    15·1 answer
  • What is the best approximation for the circumfrence of a circle with a diamiter of 400 inches​
    6·1 answer
  • Find the value of y and<br> simplify completely.
    8·1 answer
  • -Mondays 10 points<br> -Wednesdays 10 points<br> -Fridays 30points<br> -Sundays 10 points
    8·2 answers
  • I NEED HELP ASAP. (WORTH 50 POINTS)
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!