Jana scored 45 in her 50 item math test. what is the ratio of her correct to her incorrect answers

Answers

Answer 1

Answer:

9 : 1

Step-by-step explanation:

Let the correct answers be denoted by C.

Let the incorrect answers be denoted by I.

Given the following data;

Correct answers = 45 answers

Incorrect answers = 50 - 45 = 5 answers

Ratio of correct to incorrect answers;

C : I = 45 : 5

Dividing by 5, we have;

C : I = 9 : 1


Related Questions

HELP!!! THIS IS DUE AT 11:59!

Answers

Answer:

x + 5 = 27

x = 22

30 = x - 8

x = 38

x - 14 = 10

x = 24

Step-by-step explanation:

1. x+5=27
x=27-5
x=22
2. 30=x-8
30+8=x
38=x
3. x-14=10
x=+14+10
x=24

Find the slope of the line parallel to y = -x – 4 CHECK!​

Answers

Answer:

Slope: -x

Slopes in paralel lines are the same

Step-by-step explanation:

The new Nintendo game costs $70. The sales tax was 5%, what was the total cost?

Answers

Answer:

$66.50.

Step-by-step explanation:

If a triangle has angles of 40, 120, and 20 degrees, then it is called an_______ triangle.

Answers

Answer:

Obtuse

Step-by-step explanation:

1 angle over 90

Increase 480 by 17%
Quick answer please!!

Answers

Answer:

561.6

Step-by-step explanation:

480+17%(81.6)=561.6

Answer:

561.6

Step-by-step explanation:

Percentage increase = 17% × 480

= 81.6

New value = 480 + 81.6

= 561.6

Which of the following coordinates is in the solution set of this system?

A. (0,0)
B. (-5,3)
C. (8,-8)
D. (1,-4)
E. (2,-5)

Answers

Answer:

B.

Step-by-step explanation:

Answer:

b ceguro

pa heart din plss

How much water is in a empty glass that is 10 centimeters high and has a diameter of 5 cm

Answers

Answer = 196.34ML

If the length is 10cm and the diameter 5cm then the answer would be 196.34ML or 6.63 FL Oz
If the water is in a empty glass that is 10 centimeters high and has a diameter of 5cm it would be 6.63 FL

Write an equation for the function whose graph is described.
The shape of f(x) = |x|, but shifted 19 units up and then reflected in the x-axis

Answers

Answer:

f(x)=-|x|+19

Step-by-step explanation:

so shifted 19 units up means

abosolute value of x + 19

and reflected in the x axis means that you have to put the - before the abosolute value.

so -|x|+19

1. In which set of ordered pairs is y a function of x?
A. {(1, 2), (0, 1), (0, 2), (1, 1)}
B. {(4, 1), (3, 1), (2, 1), (1, 1)}
C. {(1, 4), (1, 3), (1, 2), (1, 1)}
D. {(2, 5), (3,6), (6,5), (2, 7)}

Please help :(

Answers

B because the x value didn’t repeat

1) (35 + 17) + 43 = 35+ (17 + 43)

Answers

Answer:

95?

Step-by-step explanation:

I need help with math

Answers

Answer:

6:3

Step-by-step explanation:

PLEASE HELP IN ONE MINUTE WILL MARK BRAINLIST

Answers

Answer:

1,-2  | -2,7 ????

Step-by-step explanation:

It’s due late tonight can some pls help me pass

Answers

Answer: C
The x row goes up every time by two and the y decreases by 4.
6-4=2 ect...
MARK THE BEST PLZ!!

There are 3 space helmets and you take away 2,how many do you have?​

Answers

Answer:

1 space helmet

Step-by-step explanation:

subtract 3-2 = 1 helmet

Can you help me on question one?!

Answers

Answer:

I believe the answer is C

Answer:

I think answer is C

Step-by-step explanation:

Becausr A B AND D ARE SAME FORM OF WRITTING

someone pls help me‼️

Answers

Step-by-step explanation:

to find area of quarter circle---

= πr²×1/4

= 22/7×8×8×1/4

= 50.28

hope this helps:)♥

5(6p-3)-2 = 2(15p - 11)+5 one solution, no solution, infinite solution ​

Answers

Answer:

Step-by-step explanation:

Jeffrey has an aquarium in the shape of a rectangular prism. He is going to place a layer of sand over the base for his iguana. The area of the base of the aquarium can be represented by the expression (42x3−14x2+21x) feet3. If the width of the aquarium is represented by the expression (7x) feet, what is the length of the aquarium?

Answers

Answer:

[tex]Length = 6x^2 - 2x + 3[/tex]

Step-by-step explanation:

Given

[tex]Area = 42x^3 - 14x^2 + 21x[/tex]

[tex]Width = 7x[/tex]

Required

Determine the length of the aquarium

The area of a rectangular base is calculated as:

[tex]Area = Length * Width[/tex]

Substitute values for Area and Width

[tex]42x^3 - 14x^2 + 21x = Length * 7x[/tex]

Make Length the subject

[tex]Length = \frac{42x^3 - 14x^2 + 21x}{7x}[/tex]

Factorize the numerator

[tex]Length = \frac{7x(6x^2 - 2x + 3)}{7x}[/tex]

[tex]Length = 6x^2 - 2x + 3[/tex]


Using the compound interest formula, the "n" is what value when compounded annually?

Answers

Answer:

n=1

Step-by-step explanation:

N is the number of times per year

Annually would be one time per year so n =1

Answer:

If interest is compounded yearly, then n = 1; if semi-annually, then n = 2; quarterly, then n = 4; monthly, then n = 12; weekly, then n = 52; daily, then n = 365; and so forth, regardless of the number of years involved. Also, "t" must be expressed in years, because interest rates are expressed that way.

Step-by-step explanation:

It's a snip-it from the web, but it worked for me.

How old am I if, eighty reduced by 2 times my age is fifty-six

Answers

You are 12 years old

please help me if you can!!!

Answers

Answer:

I hope this helps.

Step-by-step explanation:

Use the formula for the volume of a triangular pyramid: V=13Ah , where A = area of the triangular base, and H = height of the pyramid.

What is the slope-intercept equation of this line? (0.6) (4.-2)​

Answers

Answer: y=-2x+6

Step-by-step explanation:

The equation for slope-intercept form is : y=mx+b

m=slopeb=y-intercept

----------------------------------------------------------------

First Step: find the slope

- (y2-y1)/(x2-x1)

GIven

x1=0

y1=6

x2=4

y2=-2

Solve

 (y2-y1)/(x2-x1)

=(-2-6)/(4-0)

=-8/4

=-2

Second Step: find the y-intercept

Given

y=-2x+b

Substitute one of the points into the equation

y=-2x+b

(-2)=-2(4)+b

-2=-8+b

b=6

Hope this helps!! :)

Please let me know if you have any questions

Which is greater. 12 laps in 8 minutes or 16 laps in 10 minutes

Answers

Answer:

16 laps in one minute

Step-by-step explanation:

If you divide it you can find that the person will run 1.6 laps in a minute and the other one will run 1.5 laps in 1 minute.

Probability tree diagram​

Answers

Answer:

?

Step-by-step explanation:

can you explain a little more

I’m not quite sure what you mean

The principal at a school recorded the color and make of all vehicles in the student parking lot. From the data, the following probability model was created about the colors of the vehicles.
A 2-column table with 4 rows. Column 1 is labeled outcome with entries red, black, white, other. Column 2 is labeled probability with entries 0.28, 0.30, 0.22, 0.20.
Which pairs of events about a vehicle are mutually exclusive? Check all that apply.
The events red and black
The events white and two door
The events white and other
The events black and truck
The events red and other

Answers

Answer:

1, 3, 5

Step-by-step explanation:

EDG 2020-2021 Stats

The events ,The events red and black ,The events white and other, The events red and other are mutually exclusive.

What is probability?

The probability is defined as the chances of happening any event. Mutually exclusive events are those in which the one event is independent of the other event.

The condition for the mutually exclusive event will be:

[tex]P(A|B)=\dfrac{P(A) \ and P(B)}{P(A)}=P(A)[/tex]

We have the data

red,    0.28

black,  0.30

white,  0.22

other   0.20

Here we will check the mutually exclusive event:-

(1)The events red and black

[tex]P(R|B)=\dfrac{P(R\ and\ B)}{P(B)}[/tex]

[tex]P(R|B)=\dfrac{0.28\times 0.30}{0.30}=0.28 =P(R)[/tex]

Hence the event is exclusive.

(2)The events white and other

[tex]P(W|O)=\dfrac{P(W\ and\ O)}{P(O)}=P(W)[/tex]

[tex]P(W|O)=\dfrac{ 0.22\times 0.20}{0.20}=0.22=P(W)[/tex]

Hence the event is exclusive.

(3) The events red and other

[tex]P(R|O)=\dfrac{P(R\ and\ O)}{P(O)}=P(R)[/tex]

[tex]P(R|O)=\dfrac{ 0.28\times 0.20}{0.20}=0.28=P(R)[/tex]

Hence the event is exclusive.

Hence the events ,The events red and black ,The events white and other, The events red and other are mutually exclusive.

To know more about probability follow

https://brainly.com/question/24756209

#SPJ2

At this weekend’s football game, 15 out of the first 50 people who entered the field were not wearing hats. If this sample is representative of the 250 people attending the game, about how many of them will probably NOT be wearing hats?

Answers

250/50=5
5x15=75
75 people out of 250 will NOT be wearing hats

75 people out of 250 will NOT be wearing hats.

At this weekend's football game, 15 out of the first 50 people entered in the field were not wearing hats.

The number of people attending the game is 250.

What is Probability?

Probability is a measure of the likelihood of an event to occur.

Now,

Probability for not wearing hats;

⇒ 250/ 50 = 5

⇒ 15 x 5 = 75

Hence, 75 people out of 250 will NOT be wearing hats.

Learn more about the probability visit:

https://brainly.in/question/45821231

#SPJ2

Determine whether the following statement is true or false. If the statement is
false, make the necessary change(s) to produce a true statement.
WEC
Breakdown of Catholic Americans
by Party Affiliation and Gender
572 Democrats
294 Men
278 Women
1400 Catholic
Americans per 441 Republicans
235 Men
10,000 Adults
206 Women
1387 Independents <199 Men
188 Women
Let
c = the set of Catholic Americans
R = the set of Catholic Republicans
D = the set of Catholic Democrats
M = the set of Catholic Democratic men
W = the set of Catholic Democratic women
Select the correct choice below and, if necessary, fill in any answer boxes to complete your choice, including any necessary set names.
O A. The statement is true.
OB. The statement is false. It should be changed to

Answers

Answer:

Step-by-step explanation:

No entendí °-°

what is 900 * 158000​

Answers

Answer:

142,200,000

Step-by-step explanation:

Used Calculator

Answer:

142200000

Step-by-step explanation:

It's a really long answer

Mike bakes 24 cookies for some friends. He gives the same number of cookies to 2 friends. How many cookies c does each friend receive? Write an equation to represent the number of cookies each friend receives.​

Answers

Answer:

12 cookies for both friends (assuming you don't get any)

Step-by-step explanation:

24/2=12

since you seem like a kid, that slash means divided by

convert 10009 out of 17%​

Answers

Answer:

Step-by-step explanation:

To convert 10,009 to 17%, turn 17% to decimal and multiply that by 10,009 (10,009 * 0.17), which equals 1,701.53

IF you meant to convert the fraction 10,009/17% (read as "10,009 out of 17 percent, ") then simply convert 17% to a decimal (0.17) and divide 10,009 by 0.17 (10,009/0.17) which is about 58,876.47, for full decimal, use a calculator and do 10,009/0.17

The question is kind of confusing so tell me what you meant

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