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
anzhelika [568]
3 years ago
6

Andrea earned 200 points on a school assignment. Because the

Mathematics
1 answer:
Lera25 [3.4K]3 years ago
7 0

Answer:

It was approximately a 9% decrease. (If you need to round to the nearest tenth, 9.1. If you need to round to the nearest hundredth, 9.10).

Step-by-step explanation:

I am going to assume that the question means that Andrea could have earned 220 points on the assignment, but instead because the assignment was late, she was marked down 20 points. (Reduced to 20 points is kind of awkward wording).

Given that, 20 divided by 220 comes out to 0.0909 repeating.

0.09, as a percentage, is 9%. (Again, 0.0909, 9.09%, could be rounded up to 9.1%).

Hope this helps!

You might be interested in
Scientists use supporting evidence to create an explanation. Explain why using evidence to support your explanations is a good p
lesya [120]

Answer: Scientific inquiry refers to the diverse ways in which scientists study the natural world and propose explanations based on the evidence derived from their work. Inquiry also refers to the activities of students in which they develop knowledge and understanding of scientific ideas, as well as an understanding of how scientists study the natural world. National Science Education Standards, p. 23.

As pointed out in the National Science Education Standards (National Research Council, 1996), students who use inquiry to learn science engage in many of the same activities and thinking processes as scientists who are seeking to expand human knowledge of the natural world. Yet the activities and thinking processes used by scientists are not always familiar to the educator seeking to introduce inquiry into the classroom. By describing inquiry in both science and in classrooms, this volume explores the many facets of inquiry in science education. Through examples and discussion, it shows how students and teachers can use inquiry to learn how to do science, learn about the nature of science, and learn science content.

A good way to begin this investigation is to compare the methods and thinking process of a practicing scientist with the activities of an inquiry-based science lesson. The stories in this chapter set the stage for many of the themes to follow. The sidebars suggest some important aspects of the investigations of both scientists and students.

INQUIRY IN SCIENCE

A geologist who was mapping coastal deposits in the state of Washington was surprised to discover a forest of dead cedar trees near the shore. A significant portion were still standing, but they clearly had been dead for many years. He found similar

3 0
3 years ago
Y minus two thirds x minus one
Harlamova29_29 [7]

Answer:y-2x/3-1

Step-by-step explanation:

5 0
4 years ago
What is the one’s place digit in the cube root of 1728 ?
Lady_Fox [76]

Step-by-step explanation:

2 is the number which is in the ones place digit in the cube root of 1728..

5 0
3 years ago
Read 2 more answers
Algebra 3!! Answer both please! 40 points for both.
Kamila [148]
Hduahahavqddswdwwaqqq
8 0
3 years ago
Help me, show work please​
kogti [31]

Answer:

4

Step-by-step explanation:

93 = 775•0.03•t

93 = 23.25t

t = 93/23.25

t = 4

6 0
3 years ago
Other questions:
  • Katherine drove 13 miles in 1/5 hour. On average, how fast did she drive, in miles<br> per hour?
    6·1 answer
  • To which subsets of the real numbers does the number 22 belong?
    8·1 answer
  • HELP! SHOW ALL WORK AND EXPLAIN. :P
    5·2 answers
  • I need help on this SHOW WORK PLEASE
    8·1 answer
  • Simplify the expression (18x^2 / 3x^6) .
    12·2 answers
  • Write the converse of this statement.<br> If 3 - 2 x = 13, then x = -5.
    7·1 answer
  • In ΔABC, BC = 12.35, AC = 8.75 centimeters, and m∠B = 37°. What are
    14·2 answers
  • A town has a population of 1,000 people. The population triples every 100 years. Which equation and graph show the number of yea
    5·1 answer
  • PLEASE HELP ASAP I'M BEING TIMED!!!!!!!!!!!!!!!!!!!!!! WIll mark BRAINLIEST!!!!!!!!!!!!
    8·2 answers
  • A3 Math gr6 20-21 Form O Online 21 of 34Item s Ali writes the expression "half of the sum of $9$ and a number." Write an algebra
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!