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
myrzilka [38]
3 years ago
8

Mari and Kai's test scores are shown below: Mari: 72, 80, 90, 73, 74, 90 Kai: 56, 63, 70, 100, 32, 23 If Kai and Mari both got a

100 on the next test, then which student will see a greater increase in his or her math grade? A. Kai B. Both of the students saw a decrease in their averages. C. Both of the students averages remained the same. D. Mari​
Mathematics
1 answer:
mezya [45]3 years ago
8 0

Answer:

A. Kai

Step-by-step explanation:

1st Step - find the average test scores for Mari and Kai

1st Step - find the average test scores for Mari and Kai

Mari: 72 + 80 + 90 + 73 + 74 + 90 = 479

479 ÷ 6 (total number of tests) = 79.8 (Average test score for Mari)

Kai: 56 + 63 + 70 + 100 + 32 + 23 = 344

344 ÷ 6 (total number of tests) = 57.3 (Average test score for Kai)

2nd Step - Now each student got a 100 on the next test (the 7th test). So add 100 to the initial total.

Mari: 479 + 100 = 579

579 ÷ 7 (new total number of tests) = 82.7 (New average test score for Mari)

Kai: 344 + 100 = 444

444 ÷ 7 (new total number of tests) = 63.4 (New average test score for Kai)

3rd Step - find the difference between Mari's test scores. then find the difference between Kai's test scores to see who will have the greatest increase in math grade.

Mari: 82.7 - 79.8 = 2.9

Kai: 63.4 - 57.3 = 6.1

6.1 is greater than 2.9

You might be interested in
G(x) =
anygoal [31]

The average rate of change of g over the interval [-2, 4] is 4

<h3>What is the average rate of change of g over the interval [-2, 4]?</h3>

The equation of the function is given as:

g(x) = 4x + 7

Calculate the value of the functions

g(-2) and g(4)

So, we have:

g(-2) = 4 * -2 + 7 = -1

g(4) = 4 * 4 + 7 = 23

The average rate of change of g over the interval [-2, 4] is then calculated as:

Rate = g(4) - g(-2)/4 - 2

This gives

Rate = (23 + 1)/(4 + 2)

Evaluate

Rate = 4

Hence, the average rate of change of g over the interval [-2, 4] is 4

Read more about average rate of change at

brainly.com/question/8728504

#SPJ1

Complete question

g(x) = 4x + 7

What is the average rate of change of g over the interval [-2, 4]?

8 0
2 years ago
Simplify the following expression:<br><br> -3(x+6)+8x<br> 3x-25<br> 5x-22<br> -11+3x<br> 5x-18
Alina [70]

Answer:

5x -18

<h2>I hope this helped! </h2><h3>have a nice day! :)</h3>
3 0
3 years ago
Read 2 more answers
How to get the answer to 3 1/2 ÷ 5 ( I need I step by step explanation :D )
Sati [7]

Answer: .28

Step-by-step explanation: First turn the mixed number into an improper fraction. so 3x2+1=7, 7 is the the top and the bottom stays the same (2) so it would now be 7/2 divided by 5 which would equal .28

I hope this helps

4 0
3 years ago
WHO CAN HELP ME !!!!!!! PLEASE FINNA CRY RN​
Taya2010 [7]

Answer:

In the other polygon which is smaller you just half the size of the larger one like 12 became 5 and 6 became 3 so 14 will also be halved and the answer will be

7

4 0
3 years ago
Read 2 more answers
Si al triple de un número se le suma<br> 5, se obtiene -7. ¿De qué número se trata?<br> 3x +5 =-7
e-lub [12.9K]

Answer:

Im sorry but your questio is in spanish

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • If TUVW is an isosceles trapezoid with TU parallel to WV, name a pair of similar triangles. Explain.
    9·1 answer
  • Without calculating, which has a bigger volume. A cube that has a length, width, and height of 18 m. Or a sphere with a radius o
    13·1 answer
  • a bag of concrate can be used to make a 5ft by 7ft porch.if you want to make a 20ft by 28ft,porch. how many bags of concreate do
    12·2 answers
  • How many meter is a desk and a bicycle
    15·2 answers
  • What is the exponential function modeled by the following table?
    5·1 answer
  • there are 8 students on the minibus. five of the students are boys. what fraction of the students or boys?
    13·2 answers
  • The function f(x)=x is vertically translated 1 unit up and then reflected across the y-axis. What's the new function g(x)?
    8·1 answer
  • Please help i’ll give brainless
    8·1 answer
  • hudson went into a restaurant and bought 8 hamburgers and 4 drinks, costing a total of $52. Levi went into the same restaurant a
    15·1 answer
  • for your career project, you plan to design ans sell t-shirts. During the first 5 weeks of selling the shirts, the functions f(s
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!