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
3241004551 [841]
2 years ago
5

GRADES On her first four quizzes, Rachael has earned scores of 21, 24, 23, and 17 points. What score must Rachael

Mathematics
1 answer:
Shkiper50 [21]2 years ago
3 0
Answer:
20

Explanation:
For the mean to be 21, the total of the 5 numbers must be 21*5= 105

To find what the final quiz score must be, we need to subtract the first 4 scores from 105. 105- 21- 24- 23- 17= 20

We can check this answer by finding the median of the 5 numbers now (17,20,21,24,23). The new median is 21 which means the final quiz score must be 20!

Hope this helped! :)
You might be interested in
Identify a pattern and find the next number in the pattern. 57, 52, 47, 42
sweet-ann [11.9K]
The pattern is subtracting each number by 5
8 0
2 years ago
Read 2 more answers
A commercial property purchased for 1.2 million is revalued at 995,000. Calculate the percentage decrease in the property’s valu
soldi70 [24.7K]

Answer:

17%

Step-by-step explanation:

First: work out the difference (decrease) between the two numbers you are comparing. Then: divide the decrease by the original number and multiply the answer by 100.

First:

1,200,000 - 995,000 = 205,000

Then:

205,000 / 1,200,000 = 0.17

0.17 × 100% = 17%

4 0
3 years ago
Read 2 more answers
A class consists of 55% bots and 45% girls. It is observed that 25% of the class are boys and scored an A on the test, and 35% o
oksian1 [2.3K]

Answer:

0.1575

Step-by-step explanation:

Probability of picking a girl is 0.45 and probability of a girl scoring A is 0.35.

Therefore probability of a girl scoring A is 0.45*0.35=0.1575

8 0
3 years ago
Chris saved x dollars and spent half of his savings buying video games. After earning an additional $15 cutting grass, he had $5
olga55 [171]

Chris started with $70  in the savings account

What is the equation representing the scenario?

The equation representing the scenario painted in the question is: one half times x plus 15 equals 50

1/2*X+15=50

X/2+15=50

X/2=50-15

X/2=35

X=35*2

X=70

In short the amount Chris started with in the savings account is $70

Find out more about savings plan equation on:brainly.com/question/23630456

#SPJ1

4 0
1 year ago
The sum of 4 consecutive odd numbers is 40.<br> What is the second number in this sequence?
Tcecarenko [31]

Answer:

7,9,11,13 = 40

Step-by-step explanation:

second number is 9

7 0
3 years ago
Read 2 more answers
Other questions:
  • How do I do solving systems of equations by substitution?
    14·1 answer
  • A sequence is defined recursively by the formula f(n + 1) = f(n) + 3 . The first term of the sequence is –4. What is the next te
    15·2 answers
  • CAN SOMEONE PLEASE HELP ME WITH THIS QUESTION
    6·1 answer
  • What is m&lt;KNL? <br>Enter your answer in the box<br>​
    15·1 answer
  • Estimate the quotient. 6 2/5 ÷ 2 6/7 ? A) 2 B) 4 C) 5 D) 3 and please explain it . ty
    9·1 answer
  • In fixed deposit, a bank gives 10% interest compounded annually for senior citizens. How many complete years will it take for a
    11·1 answer
  • How do I answer this question for my advance algebra class (4,2) m=1/3
    6·1 answer
  • Simplify 4/9 square root
    5·2 answers
  • ((5 ^ 3)/(25 ^ 2)) ^ 2 * ((8 ^ 2)/(4 ^ 2)) ^ 3 * (5/2) ^ 4
    11·1 answer
  • Which of the following statements are true about the graph? Check all that apply.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!