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​

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

i think that you should ask google for the answer to that problem because if we don't know it google does

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!