Yesterday, there were 30 problems assigned for math homework. Nancy did 10% of them correctly. How many problems did Nancy get wrong?
1.) 5
2.) 10
3.) 20
4.)27​

Answers

Answer 1

Answer:

i dont know if this is right but im pretty sure its 5

Step-by-step explanation:

Answer 2

Answer:

4.) 27

Step-by-step explanation:

Just take 30 and - 10% = 27

Because you are looking for the wrong one so you always have to see how many it was before and how many it was after. Sometimes you can minus the number and then that's the answer you get from minusing


Related Questions


A bag is filled with 4 red marbles, 3 blue marbles, 3 yellow marbles, and
2 green marbles. You randomly choose one marble from the bag. (a) Find
the number of ways the event can occur. (b) Find the favorable outcomes
of the event.
1. Choosing red
2. Choosing green
3. Choosing yellow
4. Choosing not blue

Answers

Step-by-step explanation:

1) 4/12= answer --->1/3

2)2/12= -----> 1/6

3)3/12------>1/4

4) 1/9

its been so long since I did this so number 4 might be wrong

Landon has a points card for a movie theater. He receives 70 rewards points just for signing up. He earns 5.5 points for each visit to the movie theater. He needs 125 points for a free movie ticket. How many visits must Landon make to earn a free movie ticket?

Answers

Answer:

10 times

Step-by-step explanation:

125-70 bonus points =55 points left.

55 divided by 5.5 per visit = 10 times to get a free movie ticket.

To verify it is correct:

10 visits x 5.5 points each = 55 points total

55 + 70 bonus points = 125 for a free ticket.

Answer:

10

Step-by-step explanation:

Let x= number of visits

5.5x+70=

125

subtract -70 from 70 and 125

5.5x=  55

divide both sides by 5.5

x=10

:)

All corners are right angles.

Answers

Answer:

30 in

Step-by-step explanation:

4+4+10=18+2=20+3+3+2+2=30

Of the 800 participants in a marathon 120 are running to raise money for a cause how many participants out of 100 are running for a cause

Answers

Answer:

15%

Step-by-step explanation:

Step-by-step explanation:

120 out of 800 are running for a cause. = 15 are running for a cause. 15 out of a 100 = 15%

A Leopoldo su Maestra l le pidió que calcular el perímetro de un rectángulo que tiene las medidas que se indican en el dibujo cuánto mide su perímetro

Answers

Answer:

Lo siento, no puedo ayudarte, porque esta resonancia es porque no tienes una imagen ni nada para que yo te ayude, lo siento, espero que tengas un buen día.

Step-by-step explanation:

which fraction would complete the pattern? 1/4, 2/8, ___, 4/12​

Answers

The missing fraction would be 2/6

The area of Mammoth Cave NationalPark in Kentucky is about fifty-two thousand, eight hundred thirty and nineteen hundredths acres. Which shows this number of acres as a base ten numeral?

Answers

Answer:it’s the first one

Step-by-step explanation:

squares and rectangles both have four angles that measure 45° each true or false​

Answers

Answer:

False

Step-by-step explanation:

They both have four angles that measure 90°.

Hope I helped.

No it isnt true. A rectangle or a square has right angles that have a degree of 90 so its actually 90 degrees.

A computer and printer cost $1128. The cost of the computer is three times the cost of the printer. Find the cost of each item. (Also have a great day :D)

Answers

Answer:

Computer 752

Printer 376

Step-by-step explanation:

1128./3=376

1128.-376=752

Two hundred and fifty-four people were surveyed regarding their favorite type of gemstone: 54% chose diamonds 6% chose sapphires 30% chose emeralds .. 10% rubies.Approximately, how many people did not choose emeralds or rubies?​

Answers

Step-by-step explanation:

anyone GIRLS interested in talk...cuz I m getting bored

Pls help extra points

Answers

The median of the data set is 2.

Answer:

2

Step-by-step explanation:

hope it helps


is a polygon with 4 sides and 4 angles
a. Triangle
b. Quadrilateral
c. Polygon​

Answers

Answer:

Quadrilateral is a polygon with 4 sides and 4 angles

Answer:

Quadrilateral

=> hope it helps

consists of a formula a^2+b^2=c^2 which is used to figure out the value of (mostly) the hypotenuse in a right triangle. The a and b are the 2 "non-hypotenuse" sides of the triangle (Opposite and Adjacent).

Answers

Answer:

That is the pythagorean theorem.

There were twelve times more children than adults at the matinee performance of the school play. There were 455 people at the play. How many adults and children were there?

Answers

Answer:

35 adults, 420 children

Step-by-step explanation:

1. Set up variables

Let's say children is c and adults is a.

2. Create the equations

c = 12a AND c + a = 455

3. Plug in the variables

Let's take c = 12a and substitute it in for c in the equation "c + a = 455." That would be...

12a + a = 455

13a = 455

a = 35

3. Plug in more variables

Now we have our answer for a, so let's plug it into the other equation. That would be...

c + a = 455

c + 35 = 455

c = 420

The height of a rectangular prism is half its width. The width of the prism is 1··3o f its length. If the width of the prism is 3 centimeters, what is the volume?

Answers

Answer:

just have fun

Step-by-step explanation:

Write "yes" or "no" to state whether or not the given side lengths would form a right triangle.
NO LINKS PLSSS
-will mark brainliest :)

Answers

Answer:

"yes" or "no"

Step-by-step explanation:

Simplify the expression 6−2+5+4.

Answers

the answer will have to be 13

The parent function f(x) = log3x has been transformed by reflecting it over the x-axis, stretching it vertically by a factor of two and shifting it down three units. which function is representative of this transformation?

g(x) = log3(-2x) - 3
g(x) = -2log3(x) - 3
g(x) = 2log3(x) + 3
g(x) = log3(2x) + 3

Answers

Answer:

f(x) =  -2 log3x - 3.

Step-by-step explanation:

f(x) = log3x

Reflecting over x axis makes it  f(x) = f(x) = -log3x

Vertical stretch gives -2 log3x

Finally moving the graph down 3 units gives  -2 log3x - 3.

help please ! i need it asap & do not put any typa link .

Answers

Answer:

SU = 32 and <SVT = 32

Step-by-step explanation:

math, i am pretty sure about the angle and positive on the diagonal

An orange traffic cone has a diameter of 14 inches and a height of 28 inches. What is the volume of the traffic cone? Round to the nearest tenth.

Answers

Answer:

14367 inch^3

Step-by-step explanation:

Diameter of the cone= 14 inches

Radius of the cone= Diameter/2= 14/2= 7 inches

Height= 28 inches.

Volume of the cone = 1/3 π r^2 .h

Then substitute for the values, we have

Volume= 1/3 × π × 7^2 × 28

Volume= 1436.9 inch^3

Volume in nearest tenth= 14367 inch^3

How can I use coordinates to find distances determine perimeter and geometric shapes

Answers

Answer:

Step-by-step explanation:

sketch it out

Which equation could represent the following:
5 less than a number is 8.
On - 5 = 8
0 5 - n = 8
On + 5 = 8
0 5 + n = 3

Answers

Answer:

n - 5  = 8

Step-by-step explanation:

5 less than a number = a number subtracted by 5

What value is an x worth

Answers

Answer:

The letter "x" is often used in algebra to mean a value that is not yet known. It is called a "variable" or sometimes an "unknown". In x + 2 = 7, x is a variable, but we can work out its value if we try! A variable doesn't have to be "x", it could be "y", "w" or any letter, name or symbol.

Step-by-step explanation:

What is the measure of Arc BA? An explanation would be much appreciated.

Answers

Answer:

m<BA = 180degrees

Step-by-step explanation:

First you must know that measure of <BA is 180 degrees and m<CD = m<BA

Since <CD = 16z - 12, hence;

180 = 16z - 12

16z = 180++12

16z = 192

z = 192/16

z = 12

Get <BA

m<BA = 16z - 12

m<BA = 16(12) - 12

m<BA = 192 - 12

m<BA = 180degrees

Translate the shape A four squares left and three squares up.

Answers

la forma A cuatro cuadrados a la izquierda y tres cuadrados hacia arriba.

Answer:

A house but with a triangle on top

Step-by-step explanation:

I need help on this question please and thanks :)

Answers

Answer: a and b

Step-by-step explanation:

Answer:

a, b

Step-by-step explanation:

input, output = ordered pair

m = 3, y-int = 2

A university is applying classification methods in order to identify alumni who may be interested in donating money. The university has a database of 58,205 alumni profiles containing numerous variables. Of these 58,205 alumni, only 576 have donated in the past. The university has oversampled the data and trained a random forest of 100 classification trees. For a cutoff value of 0.5, the following confusion matrix summarizes the performance of the random forest on a validation set:
Predicted
Actual No Donation Donation
Donation 268 20
No Donation 5375 23439
The following table lists some information on individual observations from the validation set:
0.8
Observation ID Actual Class Probability of Donation Predicted Class
A Donation 0.8 No Donation
B No Donation 0.1 Donation
C No Donation 0.6 Donation
Compute the values of accuracy, sensitivity, specificity, and precision.

Answers

Answer:

Accuracy = 0.81

Sensitivity = 0.93

Specificity = 0.81

Precision = 0.047

Step-by-step explanation:

Given the confusion matrix :

Actual_______ Donation___ No Donation

Donation______ 268 (TP) _______ 20 (FN)

No Donation ___5375 (FP) _____23439 (TN)

Accuracy is calculated as :

(TP + TN) / (TP+TN+FP+FN)

(268 + 23439) / (268 + 23439 + 5375 + 20)

ACCURACY = (23707 / 29102) = 0.81

Sensitivity (True positive rate) :

TP ÷ (TP + FN)

268 ÷ (268 + 20)

268 ÷ 288 = 0.93

Specificity (True Negative rate) :

TN ÷ (TN + FP)

23439 ÷ (23439 + 5375)

23439 ÷ 28814

= 0.81

Precision :

TP ÷ (TP + FP)

268 ÷ (268 + 5375)

268 ÷ 5643

= 0.047

given a correlation of 0.09 how would you describe this correlation (be sure to include positive/negative and strong/moderate/weak)rate weak

Answers

Answer:

Very weak

Step-by-step explanation:

the higher the correlation value (R²) the higher the strength of the correlation

The midpoint of AB is M(-3, 0). If the coordinates of A are (1,−4), what are the coordinates of B?

Answers

i believe the answer would be (-7,4)

state three different between the fundamantal and derived quantities​

Answers

Step-by-step explanation:

Derived=Depends on other quantities, obtained from product or division of fundamental quantities, exist a large number of derives units in the metric system

Fundamental=Independent, can't be expressed in terms of derived units, only seven fundamental units exist in the n metric system.

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