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
romanna [79]
3 years ago
5

Is this better? Its all.. There is no book to read it over so its confusing

Mathematics
1 answer:
Minchanka [31]3 years ago
7 0
Part A)

Focus on the first column where it says "test finds student lying" since it asks "what percentage..were found to be lying". We can ignore the second column completely.

We have 282 people found to be lying based on the test (bottom of the first column). Of this total, 200 have not cheated meaning that the student isn't lying. This is based on the overall premise given at the top that states "All of them denied having cheated"

Simply divide the two values: 200/282 = 0.70921985815602 which rounds to roughly 0.7092 if you round to four decimal places

Now move the decimal over 2 spots to the right to convert to a percentage
0.7092 ---> 70.92%

Answer: 70.92%
==============================================================
Part B)

We'll use the result from part A. Subtract it from 100%

100% - 70.92% = (100 - 70.92)% = 29.08%

Answer: 29.08%

Note: another way to get this answer is to divide the values 82 over 282 to get 82/282 = 0.29078014184398 and we get the same answer roughly (after rounding)
==============================================================
Part C)

Now we focus on the second column only. We have 1718 people total and of this total, 12 have cheated. Since they initially deny cheating but they really did cheat, this is a lie they tell. 

So 12/1718 = 0.0069848661234 which rounds to 0.0070 and that converts to 0.7%

Note: this isn't 7% or 70%, its point 7 percent

Answer: 0.7%

You might be interested in
Original:4<br> New:5<br> State whether the percent of change is an increase or decrease
borishaifa [10]

Answer:

increase

Step-by-step explanation:

percentage increase = new value (5) - original value (4) /original value (4) x 100

5-4 = 1

1/4 = .25

.25 x 100 - 25%

percentage decrease = original value -new l value / original value x 100

7 0
3 years ago
Based on the model ân(11551155â,8989â) describing steerâ weights, what are the cutoff values for âa) the highestâ 10% of theâ we
cestrela7 [59]
I cant understand this

8 0
3 years ago
What is the quadratics formula?
8_murik_8 [283]
This is the quadratic formula

8 0
3 years ago
Read 2 more answers
PLZ I'M BEING TIMED Which equation could have been used to create this table?
Talja [164]

Answer:

y=6x

Step-by-step explanation:

Let us assume the table is the one shown in the attachment.

We can observe the following pattern from the table:

12=6*2

24=6*4

36=6*6

60=6*10

76=6*12

Hence in general

y=6*x

Therefore the equation that could have been used to create this table is

y=6x

7 0
3 years ago
An amount of $180 is shared among three people in the ratio x: y: z.
sammy [17]

Answer:

$110 and $30

Step-by-step explanation:

To solve this, we need to know the total share which is,

4 + 11 + 3 = 18

Then, you need to know the fraction of the share over the total, such that

x = \frac{4}{18}

y =  \frac{11}{18}

z =  \frac{3}{18}

So if to find how much that'll be of the $180 for the largest and smallest share,

Largest:

\frac{11}{18}  \times 180 = 110

Smallest:

\frac{3}{18}  \times 180 = 30

6 0
3 years ago
Other questions:
  • Bill owes $425.07 on his credit card. He returns two items, one for $45.55 and the other for $54.68. Then he makes purchases of
    11·1 answer
  • Which answer shows written in scientific notation?
    13·2 answers
  • The value of y varies directly with x, and y = 104 when x = 13. Find y when x = 2.5. HELP PLEASE
    5·2 answers
  • 7x – 4 = 5x - x + 35 whats the value of x?​
    12·2 answers
  • Please help me out here <br> *image attached
    12·1 answer
  • Describe how the circumference and the diameter of a circle are related.
    8·1 answer
  • I need help ASAP please!! Giving brainliest
    9·2 answers
  • I Ready Understand Absolute Value - Inst Compare the two numbers. -6 or -7<br>​
    15·1 answer
  • Help asap
    8·1 answer
  • A salesperson at a jewelry store earns 3​% commission each week. Last​ week, Heidi sold $450 worth of jewelry. How much did she
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!