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
Marsha is buying plants and soil for her garden. The soil cost $4 per
Sonja [21]

Answer:

p ≥ 5

4s + 10p ≤ 100

Step-by-step explanation:

Here, we want to write a system of inequalities

Let the number of bags of soil be s and the number of plants be p

She wants to buy at least 5 plants

mathematically, when something is at least 5, it means greater than or equal to 5

In inequality, we have this as;

p ≥ 5

Secondly, she wants to spend not more than $100; she can spend less but cannot spend more

We have this as;

The number of bags she can buy at $4 per bag is 4 * s = 4s

the number of plants at $10 per one will be;

10 * p = 10p

Adding both should give a cost less than or equal to 100

We have this as;

4s + 10p ≤ 100

So, we have the system of inequalities as;

p ≥ 5

4s + 10p ≤ 100

7 0
3 years ago
Question 3 of 10
Darina [25.2K]
I believe ur answer is F
5 0
3 years ago
(06.01)What type of association does the graph show between x and y?
bazaltina [42]
Linear positive because you can see, it’s moving up not down.
5 0
2 years ago
Read 2 more answers
HELP ME PLEASSDJDJXKKCKCKC
attashe74 [19]

the answers is

1 Inch = 4 Feet


Here is the explanation -


the side of square = 12


length of Ground - 48


ratio of length = 12 /48


= 1/4


1 : 4

bye

7 0
3 years ago
Can you guys help we with this question. ​​​​​​
satela [25.4K]

Answer:

40

Step-by-step explanation:

(2x+1/(2x))^5 *(2x -1/(2x))^5

= ((2x)^2 -1/(2x)^2)^5 (a+b)*(a-b) =a2-b2

= (4x^2-1/4(x)^2)^5

now

x =4x^2. ,a = 1/4(x)^2 ,n =5

we have

general term = Cr *x^r *a^(n-r)

= Cr * (4x^2)^r * (1/4(x)^2)^(n-r)

= Cr *4^r * X^2r * 1/( 4^(n-r) *x^(2n-2r)

= Cr * 4^r/4^(n-r) * x^(2r)/x^(2n-2r)

= Cr * 4(2r-n) *x(4r-2n)

now for x^2

4r-2n = 2

4r -10=2

4r =12

r = 3

now for coeff

C(5,3) * 4^(2*3-5)

5!/(3!*(5-3)!) * 4

5*4/(2*1)*4

40

4 0
3 years ago
Read 2 more answers
Other questions:
  • TRUE or FALSE?
    13·1 answer
  • Identify the x coordinate of the points where the two graph intersect
    5·1 answer
  • What equals 7×12+we​
    10·1 answer
  • Please HELP!<br> I will mark best answer as brainliest
    13·1 answer
  • Which is not an advantage of using a histogram to represent data
    6·1 answer
  • How to calculate how many feet of rug is needed in a specific area
    10·1 answer
  • The data set shows the distance, in miles, to school for 10 students.
    9·1 answer
  • I don’t understand this problem at all.
    5·1 answer
  • A car salesperson had $79,327 in total monthly sales in June and $88,798 in July. The salesperson earned $3,890 in commission fr
    12·1 answer
  • I will give lots of points please help me
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!