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
I need the answer shown on a graph​
s344n2d4d5 [400]
Go to desmos graphing calculator ;)
8 0
3 years ago
Read 2 more answers
HELP!!!!!!!!! I’m almost done
balandron [24]

Alright, we're in the home stretch here :) All you need to remember is that i² = -1. Otherwise, it is the same as FOIL


(3-2i)(1+7i)

3-2i+21i-14i² ← Replace the i² with -1, then simplify like numbers

3+19i+14

17+19i or C

8 0
3 years ago
Volume
krek1111 [17]

Answer:

be brief can't see any picture

6 0
3 years ago
Read 2 more answers
In the diagram below <br> Please help I’ll give brainliest
Luda [366]

Answer:

m<GFA = 110

Step-by-step explanation:

1. ABCD - parallelogram                          Definition of a parallelogram

                                                                   (AB ll CD) (AD ll BC)

2. m<B + m<C = 180                                    Consectuive angles in a

   110 + m<C = 180                                       parallelogram are supplementary

    m<C = 70                                    

3. m<GCB = 1/2 m<C                                  Definition of angles bisector

   m<GCB = 70

4. m<B = m<D = 110                                    Opposite angles in a

                                                                    parrallelogram are congruent

5. m<CDG = 1/2 m<D                                 Defintion of an angle bisector

  m<CDG = 55

6. m<GCB+m<CDG+m<CGD=180              Sum of anlges in a triangle (ΔCDG)

  70 + 55 + m<CGD = 180

   125 + m<CGD = 180

   m<CGD = 55

7. m<CGD + m<DGF = 180                            Linear pair, supplmentary angles

  55 + m<DGF = 180

  m<DGF = 125

8. m<C = m<A = 70                                     Opposite angles in a paralellogram

                                                                     are congruent

9. m<ADG = 1/2m<D                                       Definiton of an angle bisector

  m<ADG = 55

10.m<ADG+m<DFG+m<GFA+m<A=360        Sum of angles in quadrilateral

   55 + 125 + m<GFA + 70 = 360                    DGFA

    m<GFA + 250 = 360

   m<GFA = 110

4 0
3 years ago
If a ramp has a slope less than 1 but greater than 0, is it steeper than a ramp with a slope of 1
allochka39001 [22]

No the larger the number the steeper the slope. 1 would be a steeper slope than a number less than 1.

7 0
3 years ago
Other questions:
  • A car travels 54.9 miles in an hour.If the car continues at theach same speed for 12 hrs how many will it travel
    11·1 answer
  • Please solve this problem<br><br><br> 7 + x8 &gt; 10
    12·1 answer
  • Plz help with math homework
    10·1 answer
  • (06.02) A linear function that represents the number of animals adopted from the shelter is compared to a different linear funct
    15·1 answer
  • When x = -3, then what does y equal?
    10·2 answers
  • The ratio of Jared’s stamps to Pablo’s stamps is 4:7. if Jared has 36 stamps how many stamps does Paulo have?
    11·1 answer
  • I need help with a/d​
    15·2 answers
  • 5/6 + 1/3 + 1/2 + 3/4 = ?
    9·2 answers
  • With new batteries, Jayce's camping flashlight can work for up to 14 hours before it runs out
    15·2 answers
  • Please help me with this homework
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!