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

pls answer fast. sydni's....

Answers

Answer:

1 in =4 ft

Step-by-step explanation:

Divide 32by 8 and 40 by 10

Answer:

1 inch equals four 4 because 32 divided by 4 is 8 and 40 divided by 4 is 10

Step-by-step explanation:

Savannah recorded the average rainfall amount, in inches, for two cities over the course of 6 months.

City A: {4, 3.5, 5, 5.5, 4, 2}

City B: {5, 6, 3.5, 5.5, 4, 6}

What is the mean monthly rainfall amount for each city?

What is the mean absolute deviation (MAD) for each city? Round to the nearest tenth.

What is the median for each city?

Answers

Look at the attached image for your answer

Can some one help me plz I really need help

Answers

1. 2x + 50 = 100
subtract 50 on both sides and then divide by 2.

x = 25

180 - 100 = 80

m
2. 7x - 4 = 87
add 4 on both sides and divide by 7.

x = 13

180 - 87 = 93

m
3. 5x - 2 = 38
add both sides by 2 and divide by 5.

x = 8

180 - 38 = 142

m
4. 14 + 6x = 134
subtract both sides by 14 and divide by 6.

x = 20

180 - 134 = 46

m
5. x = 53

m
6. x = 14

m

Estimate each sum or difference 2 1/4 + 5 1/2 + 10 3/4

Answers

Answer:

74/4

Step-by-step explanation:

2 1/4=9/4

5 1/2=11/2

10 3/4=43/4

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

9/4+11/2+43/4

9/4+22/4+43/4

31/4+43/4

74/4

Answer:

74/4

Step-by-step explanation:

NEED ANSWERS ASAP TY

Answers

Answer:

11

Step-by-step explanation:

Answer: 11

Step-by-step explanation: Because t has the same sides as the 11's do

Which interval contains the median number of cars in line? Drivers pay a toll to pass over a busy bridge, and there are many toll booths that collect money. The city manager counted the total number of cars waiting to pay their tolls at 15-minute intervals during the day for a total of 50 observations. The histogram below shows the results. 0 10-20 cars O 20–30 cars O 30–40 cars 0 40–50 cars Bridge Toll Booth Traffic​

Answers

Answer:

B. 20-30 cars

Step-by-step explanation:

Got it right

Answer:

B) 20–30 cars

Step-by-step explanation:

edge 2023

Find an equation in point slope form for the line haveing the slope m=-3 and containing the point (6 7)

Answers

Answer:

7-y=-3(6-x)

Step-by-step explanation:

Point slope form:

[tex]y-y_{1} = m(x-x_{1} )[/tex]

Substitute y in for 7. Substitute x in for 6. Substitute m in for -3.

7-y=-3(6-x)

Solve for t. 5(t + 3)= -3.5

Answers

Answer:

Step-by-step explanation:

5(t+3)=-3.5

distribute

5t+15=-3.5

subtract 15 from both sides

5t= -18.5

divide both sides by 5

t=-3.7

Division of fractions

Answers

Answer:

The first step to dividing fractions is to find the reciprocal (reverse the numerator and denominator) of the second fraction. Next, multiply the two numerators. Then, multiply the two denominators. Finally, simplify the fractions if needed.

Answer:

Dividing by fractions is just like multiplying fractions, except for one additional step. To divide any number by a fraction: First step: Find the reciprocal of the fraction. Second step: Multiply the number by the reciprocal of the fraction. Third step: Simplify the resulting fraction if possible.

Step-by-step explanation:

Hope this helps

Rebecca uses 3/4 gallon of paint to cover 1 wall. She has 3 gallons of paint how many 3/4s for into 3

Answers

Answer:

12

Step-by-step explanation:

I can use a little help please

Answers

Answer:

The missing side's length is 18.2

Step-by-step explanation: To find a missing side in a right triangle, you use the Pythagorean theorem to solve it. According to the Pythagorean Theorem, [tex]12.6^{2}[/tex] + [tex]13.1^2[/tex] = [tex]x^{2}[/tex], so 158.76 + 171.61 = [tex]x^{2}[/tex] ⇒ 330.37 = [tex]x^{2}[/tex] ⇒ x ≈ 18.2.

Roger made a table showing how he spent his time in one day. How many days
will go by before Rodger has slept the equivalent of one day. Explain how you found your answer!
Data:
work : 1/3 day
sleep : 3/8 day
meals: 1/8 day
computer : 1/6 day

PLSSS.... Answer must be whole #

Answers

Answer:

Roger will have to sleep 2.667 days.

Step-by-step explanation:

If Roger sleeps 3 / 8 of a day in one day.

Then for Roger to sleep the equivalent of one day he will have to sleep

=

Drew D. Dingaling came to Miraculous with a problem. Drew was told to measure 50 cm of copper wire to use in an experiment. Since his ruler only measured to 45 cm he used this amount of wire and his experiment was a failure. What was his percent error?

Answers

Answer:

the answer is 10% error.

hope this helps !

Answer:

spanich plis an español

PLEASE HELP —>50 POINTS

What are the linear factors of 2x^4 +13x^3+27x^2+13x-15 if the remainder upon division with x^2 +4x +5 is zero?

Answers

Step by step solution :

STEP

1

:

Equation at the end of step 1

 ((((2•(x4))-(13•(x3)))+33x2)-13x)-15  = 0  

STEP  

2

:

Equation at the end of step

2

:

 ((((2•(x4))-13x3)+33x2)-13x)-15  = 0  

STEP  

3

:

Equation at the end of step

3

:

 (((2x4 -  13x3) +  33x2) -  13x) -  15  = 0  

STEP

4

:

Polynomial Roots Calculator :

4.1    Find roots (zeroes) of :       F(x) = 2x4-13x3+27x2-13x-15

Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which   F(x)=0  

The linear factors of the given polynomial are (2x+3)(x+1)(x+2+i)(x+2-i)

What is linear factor?

The linear factors of polynomials are the first-degree equations that act as the building block for the simple or complex higher-order polynomials.

Given that, a polynomial 2x⁴+13³+27x²+13x-15, the remainder upon division with x²+4x +5 is zero,

That means, x²+4x +5 is a factor of the given polynomial,

On diving 2x⁴+13³+27x²+13x-15 by x²+4x +5 we get 2x²+5x+3 as quotient that means,  x²+4x +5 and 2x²+5x+3 are the factors of the polynomial,

On factorizing both the factors we get,

(2x+3)(x+1)(x+2+i)(x+2-i)

Hence, the linear factors of the given polynomial are (2x+3)(x+1)(x+2+i)(x+2-i)

For more references on linear factors, click;

https://brainly.com/question/2510777

#SPJ2

How do you solve for 5h+34=17

Answers

Answer:

h=10.2

Step-by-step explanation:

add 34 on both sides so you would have 5h =51 then you divide 51 by 5 so you are left with h = 10.2! have a great day!!

Construct a frequency histogram for the distribution shown below

Class Frequency
6- 12​​​​12 ​​​​

13-19​​​​4​​​

20-26 20

27-33 7

34-40 16

Answers

Answer:

6

Step-by-step explanation:

The answer is 6. Like he said.

16. In the expression a+2a-12c^2, a, 2b, and -12c2 are examples of
O operations.
O terms.
Olike terms.
O equations.

Answers

Answer:

Terms

Step-by-step explanation:

Any expression is formed of terms separated by addition or subtraction.

A term can be a number, a variable or the product of multiplying a number and a variable.

Now, the given expression is:

a + 2b + 12c^2

This expression has three terms all separated by addition. These terms are:

a : which is only a variable

2b : which is the product of a number and a variable

12c^2 : which is the product of a number and a variable

Hope this helps :)

Surface Area of 20,70,90 Will give brainliest to correct answer

Answers

Answer:

19,000 cm

Step-by-step explanation:

Hope this helps

Answer:

19000 square units

Step-by-step explanation:

It is assumed the rectangular prism with dimensions of 20, 70 and 90

Surface are is calculated by the formula:

SA = 2(lw + lh + wh)

Substitute values and find the value:

SA = 2(20*70 + 20*90 + 70*90) = 19000 square units

Write the equation. Solve for x.

Answers

Answer:

X = 3

Step-by-step explanation:

First count the amount of X's. There are 5 and it is plus two. Both sides should be equal in value so you have to set up your equation.

5x + 2 = 17

Then Solve For X

5x + 2 = 17

Subtract 2 from both sides

5x = 15

Divide by 5

X = 3

Check your answer

5(3) +2 = 17

15 + 2 = 17

17 = 17

It is correct!

Compare the numbers using >,<, or =
874,023______874,233

5,493,820______5,492,483​

Answers

Answer:

<

>

Step-by-step explanation:

We have two sets of numbers and are asked to compare using the <, >, = symbols.

Remember :

< means less than

> means greater than

= means equal to

One thing I was told in 2nd grade when this subject came over for the first time, was to think of the symbol as a crocodile and that it wants to eat the bigger number, with the opening of it being the mouth of the crocodile. Therefore, out of 874,023 and 874,233. Which is the bigger number?

874,223.

<

Now for the second set,

>

Use intercepts to graph the equation 2x-5y=10 Show work :)

Answers

Ok so change the questions to -5y=10-2x then divide both side 5y=-10+2x then record the terms y=-2+2/5x the answer is y=2/5x-2

1/2 (16x + 20)
Need help

Answers

Answer: let's say x = 1

16 x 1 =16

16+20=36

36x1/2=18

Step-by-step explanation:

What is the perimeter of a square with a length of 19 meters? A. 38 m B. 76 m C. 152 m D. 361 m

Answers

Answer:

The perimeter of the square is 76ft.

Help me please quick!

Answers

Answer:

28

Step-by-step explanation:

All angles together in the triangle are 180.

62+90+x=180

x=180-(90+62)

x=180-152

x=28

Please show work :) thanks for the help.

Answers

Answer:

-3f

0

f1

Step-by-step explanation:

(x = -3) f x -3 -3f

(x = 0) f x 0 = 0

x = 1) f x 1) f1

ILL GIVE BRAINLIEST PLEASEE!!!

What is the area of the trapezoid shown below?

Answers

For triangle 25x7 =175
175/2=87.5 units^2
For rectangle find missing side by using a^2=c^2-b^2 where c is the hypotenuse and a is the missing side
25 squared is 625
7 squared is 49
625-49=576

√576 is 24 the missing side is 24
4x24 is 96 units^2
96+87.5=183.5 units squared
Hope this helps

someone please pass the answers to this

Answers

Answer/Step-by-step explanation:

1. The figure is composed of a triangle and a rectangle.

Area of the triangle = ½*base*height

base = 4 ft

height = 12 - 8 = 4ft

Area of triangle = ½*4*4 = 8 ft²

Area of rectangle = length * width

Length = 8 ft

Width = 4 ft

Area of rectangle = 8*4 = 32 ft²

✔️Area of the figure = 8 + 32 = 40 ft²

2. The figure is composed of a semicircle and a triangle

Area of the semicircle = ½(πr²)

radius (r) = 3 cm

π = 3

Area = ½(3*3²) = 13.5 cm²

Area of triangle = ½*base*height

base = 3*2 = 6 cm

height = 6 cm

Area = ½*6*6 = 6 cm²

✔️Area of the figure = 13.5 + 6 = 19.5 cm²

The area of a bathroom floor measures 6 feet by 9 feet and each custom tile that makes up the flooring is 1 1/2 square feet. How many tiles are needed to cover the floor?

Answers

Answer:

Ddkdkdckkpooooooopppppp

Step-by-step explanation:

can someone answer this please

Answers

The answer is symmetric because it’s equal

Find the missing length of the triangle.
11.
26 in.
10 in.
у

PLS HURRY I WILL LOVE U FOREVER

Answers

Answer:

free points

Step-by-step explanation:

27.857

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