Henry predicted whether he got answers right or wrong in his 50 question exam. He identified the 31 questions he thought he got right. It turns out that Henry got 6 questions wrong that he thought he got correct and he only got 12 of the questions wrong he had predicted. What is the percentage accuracy he had with predicting his scores?

Answers

Answer 1

Answer:

74%

Step-by-step explanation:

Given that :

Total number of questions = 50

Total correct prediction :

Correct and right prediction = ( 31 - 6) = 25

Correct wrong prediction = 12

Total correct predictions = (25 + 12) = 37

Percentage prediction accuracy :

(Total correct prediction / total questions) * 100%

(37/ 50) * 100%

0.74 * 100%

= 74%


Related Questions



The original price of a play ticket was $36.00. Yolanda bought the ticket at original price and then marked it up 10% and resold the ticket. How
much did she resell the ticket for?
What

Answers

she sold the ticket for $39.50
explanation: you take 36 and time it by 10% and it will give you $3.60 and you add it to 36

Can someone help me find the slope of each set of ordered pairs?
The first is, (5, 7) and (-1, 3)
The second is, (-3, -5) and (3, -15)

I think the first is positive 2/3, but for the second I am stuck

Answers

Answer:

3-(-3) / -15-(-5)

= 3+3/-15+5

=6 /-10

= -3 /5

Hope it helps You

Mark as brainliest

Solve the following equation for x: 6(4x + 5) = 3(x + 8) + 3. Round to the nearest hundredth.

Answers

Answer:

[tex]\boxed {x = -\frac{1}{7}}[/tex]

Step-by-step explanation:

Solve for the value of [tex]x[/tex]:

[tex]6(4x + 5) = 3(x + 8) + 3[/tex]

-Use Distributive Property:

[tex]6(4x + 5) = 3(x + 8) + 3[/tex]

[tex]24x + 30 = 3x + 24 + 3[/tex]

-Combine like terms:

[tex]24x + 30 = 3x + 24 + 3[/tex]

[tex]24x + 30 = 3x + 27[/tex]

-Take [tex]3x[/tex] and subtract it from [tex]24x[/tex]:

[tex]24x + 30 -3x = 3x - 3x + 27[/tex]

[tex]21x + 30 = 27[/tex]

-Subtract both sides by [tex]30[/tex]:

[tex]21x + 30 - 30 = 27 - 30[/tex]

[tex]21x = -3[/tex]

-Divide both sides by [tex]21[/tex]:

[tex]\frac{21x}{21} = \frac{-3}{21}[/tex]

[tex]x = \frac{-3}{21}[/tex]

-Reduce the fraction to the lowest term by extracting and canceling out [tex]3[/tex]:

[tex]x = \frac{-3\div3}{21 \div 3}[/tex]

[tex]\boxed {x = -\frac{1}{7}}[/tex]

Therefore, the value of [tex]x[/tex] is [tex]-\frac{1}{7}[/tex].

Angles R and S are complementary. The measure of angle R equals 35 degrees.

What is the measure of angle S ?

Answers

Answer:

55 degrees

Step-by-step explanation:

I hope this helps, all you need to do is subtract 90 from 35 and your answer is S in which 55 degrees.

Answer: 55°

Step-by-step explanation:

complementary means the angles make up an angle of 90°, therefore to find the missing angle you do, 90-35 which equals 55

help me pllsssssss i am havig trouble

Answers

Answer:

First line

Step-by-step explanation:

It's an X-intercept line so you're plugging in the number that the dot is on in place of the X in the formula

The answer is the First line

Solve for x:  
1/2x + 10 = -2 + x​

Answers

Answer: x = 24

Step-by-step explanation: coz I juss know

Answer:x=24

Step-by-step explanation:hope this helps!

v=u + at
u= 2
a= -5
te
Work out the value of v.

Answers

Answer:

Time taken=Velocity/acceleration

=2/5

=0.4

v=2-(-5×0.4)

=4

The value for v is 4

Answer:

v=u+at

so, u=2

a=-5

t=(not given/e)

so, v=2+(-5)(N.G/e)

v=2-5(N.G./e)

if you remove my question you not big brain

Answers

Answer:

Whats your question?

Step-by-step explanation:

Answer:

MINE CRAFT U SHOULD NEVER PLAY

Step-by-step explanation:

Who can help we with this ?, if you can please show the work

Answers

piece #1 is x

the answer is c

Charles Babbage is known as the father of computer why ​

Answers

Answer:

Charles Babbage, who was born in 1791, is regarded as the father of computing because of his research into machines that could calculate. Babbage's Difference Engine Number 1 was the first device ever devised that could calculate and print mathematical tables.

BEACUSE HE CREATED AND OUT FATHER CREATED US THATS WHY

Select all expressions that have the same value as

Answers

Answer:

yes

no

yes

no

yes

______

What is the area of this figure?
2 cm
4 cm
6 cm
3 cm
2 cm
3 cm
1 cm
5 cm

Answers

Answer:

26.5

Step-by-step explanation:

3x3/2+8x2+3x2=26.5

The correct answer is 26.5

Miss Owens plans to join golds gym there is a one time registration fee of $75 and a monthly charges $15 write an equation to represent the situation. Be sure to identify the slope and the Y intercept remember your equation must be in slope intercept form Make a table for three points

Answers

ANSWER: y=75x+15

Srry if I'm wrong

Answer:

i believe that the right equation is y = 15x + 75 lol

Step-by-step explanation:

so slope intercept form, y = mx + b, means that y is not known yet. in this problem, since we don't know how many months miss owens is planning on, we don't know the total. so, the total will be represented by y. next, like i said before, since it is unknown how many months she will be paying for, that can be represented by a variable too, x. so now we have y = 15x + b. and the last part of the equation would be 75, which replaces b. so, the final equation is y = 15x + 75. and the slope is 15, the y intercept is 75, and the x intercept is -5. :) hope this helps!

A boat costs $15.500 and decreases in value by
10% per year. How much will the beat be worth
after 5 years?

Answers

Answer:

$7,750

Step-by-step explanation:

10% of 15,500 is 1,550 and 1,550 x 5 years = 7,750 and 15,500 - 7,750 = 7,750

-1/2 x+1 = -x+8

choices:
7
1/2
14
18

Answers

Answer:

14

Step-by-step explanation:

can you please mark this brainliest if it helped? <3

Answer:

x =14

Step-by-step explanation:

-1/2 x+1 = -x+8

Add x to each side

-1/2 x +x+1 = -x+x+8

1/2x +1 = 8

Subtract 1 from each side

1/2x +1-1- =8-1

1/2x = 7

Multiply each side by 2

1/2x *2 =7*2

x =14

18-4y=42 help, please?

Answers

18-4y=42

4y = 18-42

4y=-24

y = - 6

Write the slope-intercept form of the equation for the line containing (1,-6) and (−4,4).

Answers

Answer:

-2

Step-by-step explanation:

m = 10 / -5 = 2 / -1 = -2

One solution to a quadratic equation is x= -5/3 What is true about any remaining solutions?

There are two or more complex solutions.
There is exactly one more real solution.
There is exactly one complex solution.
There are no complex solutions.
There are no other real solutions.
There are at least two more real solutions.

thers more than one answer i believe but im completely lost​

Answers

Answer:

There is exactly one more real solution or there is exactly one more complex solution

Step-by-step explanation:

A quadratic equation is a polynomial of degree two

What this means is that a polynomial has two answers.

Now, from the question, we have an answer already which is a real root

Then the other answer which we do not have can take the form of two answers

It can either be a complex root or other wise be a real root

So the answer to this question is that ;

There is exactly one more real solution or there is exactly one more complex solution

On the grid below, which point is located in the quadrant where the x-coordinate is a negative number and the y-coordinate is a positive number?

A coordinate plane is shown. Point A is in quadrant 1, point B is in quadrant 2, point C is in quadrant 3, and point D is in quadrant 4.

A
B
C
D

Answers

Answer:

quadrant 2

Step-by-step explanation:

(-x , +y)

Would be in quadrant 1.

Since it's a Y axis Reflection

−38÷7/12 another math question.

Answers

Answer:

-0.45238095238

Step-by-step explanation:

-38 divided by 7/12= -0.45238095238

5. Evaluate the following expression for r = 5.
3r + (2-4)

Answers

Answer:

If r= 5 in 3r+(2-4)

it will beome

3(5)+(2-4)

=  15+(-2)

=  15-2

=  13

aleena bought 15 kg of fruits she brought 3kg 750 g of apples 4kg 250g of mangoes and rest were oranges find the weight of oranges
pls urgent will surely mark u the brainliast​

Answers

Answer:

8.950 kg

Step-by-step explanation:

Lemme know if incorrect



Mr. Bartol bought 20 pizzas for a 6th grade party. The total cost was
260.
w much does 1 pizza cost?

Answers

Answer:13

Step-by-step explanation:

solve for x


-30=5(x+1)

Answers

Answer:

-7

Step-by-step explanation:

Jada is training for a marathon. She wants to run a total of 25 miles this week. She will run the same distance each day for 6 days. How many miles will she run each day?

Answers

Answer:

4 1/6

Step-by-step explanation:

4 x 6 = 24

1/6 x 6 = 6/6 = 1

24 + 1 = 25 :)

Zachary purchased a computer for $1,900 on a payment plan. Two months after he purchased the computer, his balance was $900. What is an equation that models the balance y after x months​

Answers

Answer:

[tex]y=-450x+1900[/tex]

Step-by-step explanation:

According to the problem, the payment plan is $1,900, so automatically our balance is $1,900. We are then told after two months, his balance was $900:

[tex]1900=900(2)[/tex]

To achieve the equation the problem is asking for we have to find how much Zachary would possibly be paying for one month. Divide the $900 into two months:

[tex]\frac{900}{2}[/tex]

[tex]=\frac{450}{1}[/tex]

Zachary pays [tex]450[/tex] a month, and we have to remember this is being subtracted from the initial balance. We can represent this as:

[tex]y=mx+b[/tex]

[tex]y=-450x+1900[/tex]

Which statement about the ordered pairs (2, −9) and (3, −6) is true for the equation 5x−y3=13?


Neither ordered pair is a solution.

(3, −6) is a solution to the equation.

Both ordered pairs are solutions.

(2, −9) is a solution to the equation.



ABEGGG HELP ME OO , WITH THIS QUESTION , A.S.A.P!!!

Answers

(2, −9) is a solution to the equation.

i took the quiz lol

12 + x = -3(4 – x)
Solve the problem

Answers

Answer:

x = 12

Step-by-step explanation:

Answer:

x=12

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Subtract 3x from both sides.

Step 3: Subtract 12 from both sides.

Step 4: Divide both sides by -2.

Which equation represents the graph shown?
A. y+7=-3(x-4)
B. y+1=-3(x+2)
C. y-4=3(x+7)
D. y-2=3(x-1)​

Answers

Answer: A

Graph cut the horizontal and vertical axis at 2 points A(0;5) and B(1.66666;0)

you calc x=0 in the answer and have y

you can choose A or B. Next, you calc y=0 into A,B. If x=1.6666666, your answer is A

Sorry about my bad english

In a recent survey, 4 out of every 9 people surveyed said they did not like the movie. How many people would you expect to say they did not like the movie if 100 people were surveyed?

Answers

4/9=x/100
400=9x
X=44.444 so about 44 people would not like the movie
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