Henry predicted whether he got answers right or wrong in his 50 question exam.
He identified the 36 questions he thought he got right.
It turns out that Henry got 5 questions wrong that he thought he got correct and he only got 11 of the questions wrong he had predicted.
What is the percentage accuracy he had with predicting his scores?

Answers

Answer 1

Answer:

42/50 x2 =84%

Step-by-step explanation:


Related Questions

Find the value of variable x. If your answer is not an integer, write it in simplest radical form with the denominator rationalized
x=
(Simplify your answer. Type an integer or a simplified fraction.)

Answers

Answer:

Step-by-step explanation:

It is a 30°-60°-90° triangle.

The lengths of the sides of a 30°-60°-90° triangle are in the ratio 1:√3:2.

The side opposite the 90° angle has length 4, so the side opposite the 30° angle is 2.

x = 2

Help please I will give you the brainliest

Answers

Answer:

65 degrees becue it is equal shape so it would be the same.

65 degreese

Step-by-step explanation:

Ahmed owns a land of breadth (x+7) units &having an area of 2+ 14x + 49 sq. Units. (i)Find its length.

Answers

Answer:

l = (x+7) units

Step-by-step explanation:

Given that,

Breadth of the rectangle, b = (x+7) units

Area of the rectangle, [tex]A=x^2+14x+49[/tex]

The area of a rectangle is given by :

[tex]A=lb\\\\l=\dfrac{A}{b}\\\\l=\dfrac{(x^2+14x+49)}{(x+7)}\\\\l=\dfrac{(x+7)^2}{(x+7)}\\\\l=(x+7)\ \text{units}[/tex]

So, the length of the land is (x+7) units.

Bonsoir ,est ce que vous pouvez m'aidez svp l'ennoncer est ci-dessous. Yann est un fidèle client du magasin qui se situe juste à côté de chez lui. Il y achète ton son matériel d'informatique. Aujourd'hui, il veut s'offrir un disque dur externe au prix de 78,75 euros. Sa carte de fidélité lui a permis d'obtenir de 10 euros à utiliser dans le magasin. Sur le site internet du magasin, il peut bénéficier d'une remise de 20% , mais il doit payer 5,95 euros de frais de port. Quelle offre est plus bénéfique pour Yann.

Answers

Answer:

English please?

Step-by-step explanation:

The coordinates of the vertices of a triangle are A( 2,3) , B ( 9,1) , C ( 12,14) Suppose each coordinate is multiplied by 3. What is the perimeter of this triangle?







Answers

9514 1404 393

Answer:

  about 106.5 units

Step-by-step explanation:

The length of each side is found using the distance formula:

  d = √((x2-x1)^2 +(y2-y1)^2)

For example, the length of side AB is ...

  d = √((9 -2)^2 +(1 -3)^2) = √(7^2 +(-2)^2) = √53 ≈ 7.28

The other side lengths are calculated the same way. The sum of side lengths of the given triangle is ...

  AB +BC +CA = 7.28 +13.34 +14.87 = 35.49

__

Multiplying each coordinate by 3 effectively dilates the triangle by a factor of 3 about the origin. That increases the perimeter by a factor of 3, so it is ...

  3(35.49) ≈ 106.5 . . . . units

_____

I find it convenient to use a calculator or spreadsheet to do the tedious calculations.

Academy is offering a 12% discount on all of their sporting good supplies. What would be the sale cost of a basketball with an original price of $140?

Answers

123.2 dollars for the sale price.

Answer:

$123.20

Step-by-step explanation:

First, convert 12% into a decimal, 12% = .12, now we multiply the discount by the original, so .12x140 which equals $16.80 then we subtract 16.8 from 140 giving you $123.20.

this is me and I am proud of my 15 year old self

Answers

Answer:

good

Step-by-step explanation:

thx for the points :)

NEED HELP ASAP BEING TIMED ON THIS !!!

Answers

Answer:

b

Step-by-step explanation:

B. 3 1/2 is the answer

Help! Will mark brainliest

Answers

Answer:

x < −4

Step-by-step explanation:

hope this helps u with ur question lol

The coordinates of a rectangle are (3, 0), (3, -5), (-4, 0) and (-4, -5). What is the length of this rectangle?

Answers

Answer:

7

Step-by-step explanation:

0 to 3=3

0 to -4= 4

4+3=7

The transformation is a translation.

- true
- false

Answers

Answer:

I think it's would be True

bc you are moving by the same distance and the shape isnt changing.

Work out ( 6x10^2) divide by (3x10^-5)
Give your answer in standard form.

Answers

2•10^7 that’s the answer hope it helps

The sum of two numbers is 58. The larger number is 2 more than three times the smaller number. What is the smaller number? *

Answers

Answer:

x=41

Step-by-step explanation:

x + y = 58

x = 3y - 10

3y - 10 + y = 58

4y - 10 = 58

4y = 68

y = 17

x + 17 = 58

x =41

Answer:14

Step-by-step explanation:

3x+2 +x =58

Which of the following could be the lengths of the sides of a 45°-45°-90° triangle?

Answers

Answer:

[tex]the \: answer \: is \: \: {b}[/tex]

50 students were surveyed about their favorite food. 24 students picked pizza. Based on these results predict how many students out of 1,000 would pick pizza?​

Answers

Answer:

480/1000

Step-by-step explanation:

1,000 divided by 50 is 20 and 24x20=480

You multiply 24 by 20 because you need to add 24 for every 50 students which is 20 times, and you'll need to add by 50 to get to 1,000. Multipling and dividing is the fastest option.

Is 1.52 a irrational number

Answers

Answer:

yes

Step-by-step explanation:

Answer:

It is rational

Step-by-step explanation:

1.52 = 1 + 52/100 = 152/100 which is rational, because it can be expressed as a fraction

Please help will give Brainly!

Answers

Answer:

X intercepts: (-8,0) and (-4,0) Minimum Value: (-6,-8)

Step-by-step explanation:

Pls mark brainleist

Layla has 3/4 of a can of paint. She uses 2/3 of that plant. What fraction of the can did she use?

Answers

Answer:

its cuz ur computer is upside down

Step-by-step explanation:

add it all up

Kenny borrows $500 from hls friend to buy a PS5. He promises his friend he will pay him back 7% simple interest in one year. How much will Kenny pay back in total?

Answers

he will pay back $350

Need help
What specific measure of a geometric figure is shown in the image?

A. A 15° angle
B. A 180 mm side length
O C. A 165 mm side length
O D. A 165° angle

Answers

Answer:

b

Step-by-step explanation:

can you help me with my question In the extended simile of the underlined passage from Paragraph 15 of "A Wagner Matinee," the narrator makes an observation about the soul that aring rokol been A. it is like a strange moss on a dusty shelf that, with excruciating suffering, can wither and die y for I the be B though after excruciating suffering it may seem to wither, the soul never dies, C. excruciating, interminable suffering that goes on for half a century can kill the soul.

Select 3 ratios that are = to 11:1

Answers

22:2 33:3 44:4
Hope this helps

Kylie recorded the number of squats she could do on each day of her training is the relation a function explain?

Answers

Answer:

The second one

Step-by-step explanation:

Yes. Each input (day) has exactly one output (number of squats). (I think lol)

Use the interactive to make a vertical line with the equation of x=3. The line x=3 has _____ slope.
zero
no
positive
negative

Answers

it is undefined so i think it would be no

Answer:

no slope

Step-by-step explanation:

Tickets to the zoo cost $8 per child and $12 per adult. The zoo sold $5500 in tickets yesterday.
a. Write an equation to model the ticket sales for yesterday. Use c to represent child tickets
and a to represent adult tickets.
b. 125 more child tickets than adult tickets were sold. That can be modeled using the equatic
c = 125 + a. How many child tickets were sold? How many adult tickets were sold? Show
your work.

Answers

Answer:

a.   12a + 8c = 5500

b.    225 adult tickets

      350 child tickets

Step-by-step explanation:

a.    12a + 8c = 5500

b.     12a + 8(125 + a) = 5500

        12a + 1000 + 8a = 5500

                  20a = 4500

                       a = 225 adult tickets

            125 + a = 125 + 225 = 350 child tickets

S
Deon ran for president of the chess club, and he received 6 votes. There were 15 members in the club what percentage of the club members voted to Deon?

Answers

Answer:

40%

Step-by-step explanation:

6 votes, from the 15 members total. This is 6/15, which is 0.4, which is 40%. :)

Krista says that her chickens lay the most eggs of any chickens in the county. To prove her daim, she could survey chicken farms to see how many eggs each of their chickens laid that day. In this scenario, what is the population and what is a possible representative sample?​

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Population refers to the all elements which belongs to a particular subject of interest. In the scenario above, Since Krista is comparing eggs laid by any chicken in the county, then the population will be all chickens in the county.

A representative sample, which is a random subset of the population could be a certain number of chickens drawn from different poultry farms around the county. If selected randomly, will be representive of the chickens in the county.

Answer: Look at the expanation please.

Step-by-step explanation:

So she needs to know the population. So the population would be all of the chicken farms or chickens that are in her county.

The next question is what is a possible representative sample?

So one of the possibility is would be choosing a random farm in Krista´s county.

But there are many possible representative samples. You can get creative.

Thank you hope this helps. :)

Tywu paid $5.63 in sales tax on an item that cost $84 before tax. At that rate how much would he pay in sales tax for an item that cost $116 before tax?

Answers

Answer:

$7.7

Step-by-step explanation:

100×5.63÷84

6.7

116×6.7÷100

7.7

Please help I will mark Brainiest (No links please)

Answers

Answer:

72 bags

Step-by-step explanation:

you would do the area(108) times 6 since you would be stacking, then you divide by 9, since you want to see how much sand would be in each bag, so you would have 72 bags

Answer:

72

Step-by-step explanation:

the ratio of two number is 7 to 3 and their sum is 50 find the two number​

Answers

Answer:

35:15

Step-by-step explanation:

7:3=10 (7+3)

14:6=20 (14+6)

21:9=30 (21+9)

28:12=40 (28+12)

35:15=50 (35+15)

There is a more mathematical way to solve this but it isn't coming to mind rn so

Bethany bought a box of markers. She gave 6 to her friend. If Bethany now has 52 markers, how many markers were in the box she bought?

Answers

Answer:

58 markers

Step-by-step explanation:

52 + 6 = 58

Answer:

58 markers

Step-by-step explanation:

x-6=52 Set up the problem. "x" represents the number of markers.

 +6 +6 Add 6 to both sides to isolate x

x    =58

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