here a subtraction problem that has been solved incorrectly 21-9=11 what answer I got b 11+9=20​

Answers

Answer 1

Answer:

I put the answer on your copy of this question. However, I can at least put the equation here.

You are correct in this case.

11 + 9 = 20 - 9 = 11

11 plus 9 equals 20, 20 minus 9 equals 11 (correct statement)


Related Questions

PLEASE HELP!!
Only respond if you know the answer
15 ∙ 10 ∙ 2 + 15 ∙ 7 ∙2 + 7 ∙ 10 ∙ 2 which equals 650
The surface area of the jewelry box is 650 sq2
What is the surface area of the box if it is scaled up by a factor of 10?

Answers

Answer:

the answer is 6500

Step-by-step explanation:

hope this helps

Jack's family took a road trip to Mount Rushmore. Jack slept through the last 65% of the trip. If the total length of the trip was 700 miles, how many miles had they travelled when Jack fell asleep?

Answers

Using proportions, it is found that they had traveled 245 miles when Jack fell asleep.

What is a proportion?

A proportion is a fraction of a total amount.

Jack slept through the last 65% of the trip, hence he fell asleep when 100 - 65 = 35% of the 700 mile trip had been traveled, so:

0.35 x 700 = 245.

They had traveled 245 miles when Jack fell asleep.

More can be learned about proportions at https://brainly.com/question/24372153

Answer:245 miles

Step-by-step explanation:Using proportions, it is found that they had traveled 245 miles when Jack fell asleep.

What is a proportion?

A proportion is a fraction of a total amount.

Jack slept through the last 65% of the trip, hence he fell asleep when 100 - 65 = 35% of the 700 mile trip had been traveled, so:

0.35 x 700 = 245.

They had traveled 245 miles when Jack fell asleep.

A system of equations has no solution. If y = 8x + 7 is one of the equations, which could be the other equation?
O 2y = 16x +14
O y = 8x - 7
O y = -8x + 7
O 2y = -16x - 14

Answers

Answer: y=8x-7 just took the quiz hope that helps

The other equation could be y = 8x - 7

What is equation?

An equation is a  mathematical statement that is made up of two expressions connected by an equal sign.  In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.

here, we have,

to determine the other equation:

The first equation is given as:

y = 8x + 7

For the system of equation to have no solution, then the equations in the system would have different constant values.

Take for instance:

y = 8x + b

Where:

b is a constant not equal to 7

From the options, we have:

y = 8x - 7

Notice that -7 and 7 are not the same

Hence, the other equation could be y = 8x - 7

Read more about system of equations at:

brainly.com/question/13729904

#SPJ7

Need help with my Math homework

Answers

Answer:

Step-by-step explanation:

Without graphing, tell whether the slope of a line that models the linear relationship is positive, negative, zero, or undefined. Then find the slope. The total cost, including shipping, for ordering five uniforms is $63. The total cost, including shipping, for ordering seven uniforms is $83. ​

Answers

Answer:

A--> W, Z, U, Y

Step-by-step explanation:

I took the test on Edge

Can some help me please

Answers

Answer: 2/10

Step-by-step explanation:

Multiply each X value by the probability it happens. This gives 0(10/10)+1(2/10)=2/10

X - 10 - 68 - 17 =(when x = 0)

Answers

Answer:

-95

Step-by-step explanation:

0 - 10 - 68 - 17

-10 - 68 - 17

=-95

Answer:

-95

Step-by-step explanation:

Please help with angle x

Answers

Answer:

x = 155

Step-by-step explanation:

In Mrs. Kelly's class, 1/5 of the students failed the math test. Of the remaining students in the class, 1/4 scored an A. What fraction of the whole class passed the test, but scored below an A?

Answers

Answer:
11/20

Explanation:
1/5 + 1/4
= 4/20 + 5/20
= 9/20

20/20 - 9/20 = 11/20

Find the area of the trapezoid​

Answers

Answer:

49 units squared

Step-by-step explanation:

The area of a trapezoid is calculated with the following formula:

(a+b)*1/2*h (a: base, b: base, h: height)

(3+11) * 1/2 * 7 = 49 the area is stated in square units so the answer is 49^2

Krysta is finding the volume of a cylinder and the volume of a sphere. Both the cylinder and the sphere have a radius of 4 inches. The cylinder has a height of 8 inches. What is the volume of the cylinder?

Answers

Answer: 402.12 cubic inches

Step-by-step explanation:

Formula for volume of a cylinder: area of base x height

Area of base: pi x radius squared

So, pi x 4 squared

= 50.27

50.27 x 8 = 402.12

What is the value of x that makes the given equation true? -90 = -100 + x

A. -10
B. 10
C. -190
D. 190

Answers

-90 = -100+x

-90+100=X

+10 =X

OPTION B:- 10

Option B :- 10

Explanation :

[tex] - 90 = - 100 + x \\ - x = - 100 + 90 \\ - x = - 10 \\ x = 10 \\ [/tex]

Help worth 50 POINTS and BRAINLIEST

Answers

Answer:

B i think

Step-by-step explanation:

let one truck be t

10t = 120

t = 12

Answer:

120÷10

=12

Jay can clean 12 trucks

What’s the answer? Because am having a hard time with this math problem.

Answers

9514 1404 393

Answer:

  34.5 square meters

Step-by-step explanation:

We assume you want to find the area of the shaded region. (The actual question is not visible here.)

The area of the triangle (including the rectangle) is given by the formula ...

  A = 1/2bh

The figure shows the base of the triangle is 11 m, and the height is 1+5+3 = 9 m. So, the triangle area is ...

  A = (1/2)(11 m)(9 m) = 49.5 m^2

The rectangle area is the product of its length and width:

  A = LW

The figure shows the rectangle is 5 m high and 3 m wide, so its area is ...

  A = (5 m)(3 m) = 15 m^2

The shaded area is the difference between the triangle area and the rectangle area:

  shaded area = 49.5 m^2 - 15 m^2 = 34.5 m^2

The shaded region has an area of 34.5 square meters.

PLEASE HELP!
find the area!
its pretty easy

Answers

Answer:

39 right? or that's perimeter ??

Step-by-step explanation:

Answer:

191.25 mm

Step-by-step explanation:

area of triangle is 1/2 b*h

1/2 (7.5*15) = 56.25

area of rectangle is b*h

15*9 = 135

56.25+135 = 191.25

Lena used a total of 3 5/6 gallons of gas while driving her car. Each hour she was driving, she used 7/9 gallons of gas. What was the total number of hours she was driving?

Answers

Step-by-step explanation:

3 x 5/6 = 2.5 gallons of gas used

7/9 galllons per 1 hour

Hence if she used 2.5 gallons,

2.5 ÷ 7/9 =

[tex]3 \frac{3}{14} hours[/tex]

(x+y) (a+b)-(y+z) (a+b)

Answers

Answer:

(x+y)(a+b)-(y+z)(a+b)

first we solve half

(x+y)(a+b)

(xa+xb+ya+yb)

(y+z)(a+b)

(ya+yb+za+zb)

(xa+xb+ya+yb)-(ya+yb+za+zb)

xa+xb+ya+yb-ya-yb-za-zb

which needs to cut

+ya-ya+yb-yb

now left

xa+xb-za-zb

x (a+b)-z (a+b)

(x-z)(a+b)2

what is bigger, 1/2 or 2/3?

Answers

1/2 because it’s half is larger.

Answer:

2/3

Step-by-step explanation:

2/3 is bigger because it takes up more than a half.

If the angle is 111.6 what is x

Answers

Answer:

the angle would be 111.6 because they are vertical meaning that they are exact opposite of the other but have the same angle measurement.

Step-by-step explanation:

The basketball team scored 85 points in the last 2 games.How many points can they expect to score after 5games?

Answers

Answer:

297.5

Step-by-step explanation:

85/2=42.5 per game

42.5×5=212.5

85+212.5=297.5

ASAP WILL GIVE BRAINLIEST

For what value(s) of k will each relation not be a function? B = {(k^2-5k,10), (k+7,4)}

Answers

Answer:

7, -1

Step-by-step explanation:

Find which values of k will fit both expressions.

k^2 - 5k = k + 7

Solve equation.

k = 7, -1

What is 5 * 5 yeehaw new chaatatattatat

Answers

Answer:

25 yeehawwwww

Step-by-step explanation:

pls do this for me pls I need it for my homework do it in a PowerPoint and show me it

Answers

Answer:

i might need more info unless this is the only questions

Step-by-step explanation:

I'm not sure what it means by "define the types of linear" (maybe theres a given function?), but to find the x intercept you need to make y 0. For example:

if we have a function

f(x) = 2x + 1

and we want to find the x intercept we substitute 0 to y

0 = 2x + 1

not

f(0) = ......

Answer:

To find the x-intercept of a given linear equation, plug in 0 for ‘y’ and solve for ‘x’. To find the y-intercept, plug 0 in for ‘x’ and solve for ‘y’. How do you find the Y intercept in a word problem? When a word problem involves a constant rate or speed and a beginning amount, it can be written in slope-intercept form: y=mx+b.

Step-by-step explanation:

Find the value of m<3 - m<1

Answers

Answer:

if this is the image then the answer would be B.

Step-by-step explanation:

What is the equation of the line that contains the point (-1 , 4) and has a slope of 3?​

Answers

Step-by-step explanation:

Let's write the equation with formula:- Where, x1 is -1 and y1 is 4 and m is 3Thus, The correct choice is option C.

Step-by-step explanation:

Equation of line formula=> y=mx+c

Let take point (-1,4) as (x, y) and slope m=3

4= 3(-1) +c

4= -3+c

4+3=c

7=c

Therefore by using equation of line formula we get

y= mx+c [m=3 , c=7]

y=3x+7

y= 16 + 5x
x= -2
Solve it algebraically

Answers

Answer:

[tex]x=-2[/tex]

[tex]y=6[/tex]

Step-by-step explanation:

substitute in -2 to replace the x

[tex]y=16+5(-2)[/tex]

[tex]y=16-10[/tex]

[tex]y=6[/tex]

Allen purchased a computer on sale.
The original price was $1,400. The sale price was 3/5 of the original price. How much
did Allen pay for computer?

Answers

$560
Explanation: 3 divided by 5 = 0.6
0.6 x 1,400 = 840
1,400 - 840 = 560

The developmental department for a National Lawn Care Services Provider is interested in improving products and services. The germination periods, in days, for grass seed are normally distributed with a population standard deviation of 7 days and an unknown population mean. If a random sample of 17 types of grass seed is taken and results in a sample mean of 37 days, find the error bound (EBM) of the confidence interval with a 98% confidence level.

Answers

Answer:

3.949

Step-by-step explanation:

We can use the formula to find the error bound:

EBM=(zα/2)(σn/√)

We know that σ=7 and n=17. We are also given that the confidence level (CL) is 98%, or 0.98. So, we can calculate alpha (α).

α=1−CL

=1−0.98

=0.02

Since α=0.02, we know that

α2=0.022=0.01

The value of z0.01 is 2.326. Now we can substitute the values into the formula to find the error bound.

EBM=(zα/2)(σ/√n)

=(2.326)(7/√17)

≈(2.326)(1.698)

≈3.949

So, the error bound (EBM) is 3.949.

Fifteen is 30% of what number

Answers

Answer:

15 is 30% of 50

Step-by-step explanation:

Answer:

50

Step-by-step explanation:

[tex]\frac{5}{x} =\frac{13}{100}[/tex]

5×100=500

500÷13=50

welp meeeee plssssss

Answers

Answer:

[tex]if \: \: \frac{p}{4} = \frac{6}{8} = \frac{3}{4} \\ so \: p \: is \: 3[/tex]

Other Questions
Is the point (1, -3) a solution to the system? Show all work.y-x+2 Maya works mowing lawns and babysitting. She earns $8.60 an hour for mowing and $7.80 an hour for babysitting.for 1 hour of mowing and 5 hours of babysitting Which is the electron configuration for bromine? Which system of equations is equivalent to this system? 5x+10=3(x+y) x+7=3x+7 John is making a friendship bracelet with 6 different colors of thread. He uses 22 inches of each color. How many feet of thread does he use in all? Why did considerable support for the establishment of a Jewish state emerge after World War II?A The events of the Holocaust illustrated the need to establish protection for the Jewish people.B The Jewish people proved to be strong allies in the fight against communism during the Cold War.C The Axis powers forced the Jewish people out of their traditional homeland during World War II.D Jewish leaders pledged to hold free elections and establish a capitalist and democratic state. which part of the helicopter blades spin the fastest? Identify and list the supporting details in the following text:In the 12th century, Irelands politics had changed into petty kingdom that only controlled a portion of a territory. As you can imagine, these small kingdoms were very unstable. In 1167, the Norman forces of King Henry II of England forced their way into England (encouraged by a former exiled Irish king, Diarmat Ma Murchada). Diarmait was able to gain some of his control back; but Henry was worried about his sovereignty over the Normans, and seized power again. Over the next hundred years, Norman power waned as the English kings regained control. This was beneficial to Irish families, as they were able to reclaim lost territory. "Match the following type of drug with the correct effect of the drug."Tyler breathes in the fumes from paint thinner. The drug he is abusing is (Inhalants).Courtney is smoking a substance that acts as a hallucinogen, stimulant, and depressant. The drug she is abusing is (Marijuana).Ashton is using a drug that skews his perception of time, reality, and the environment around him. The drug that he is abusing is (LSD).Jill is using a drug that she injects and that immediately enters her brain. The drug that she is abusing is (Heroin).Kurt is using a drug that brings an immediate high, but leaves him feeling tired and depressed. The drug that he is using is (Cocaine).Rachel has ingested an odorless, tasteless drug, the effects of which last for a few hours. The drug that she has ingested is (GHB). (b)Newton has bought 12 dozen copies in Rs 4320. His expenditure to bring the copiesto his shop is Rs. 288. How much profit does he make in one copy after selling allcopies in Rs. 5760? Also how much profit in percent did he get in the business ofcopy? Find it. How to make 20 using the number 3,5,6,3 Simplify the expression7u29+2u+10+5u+5 Find the median of the data in the box plot below.problemsNumber of math problemsassigned by Ms. O'BrienHH0 2 4 6 8HHHHH14 1620101218.What is the median? need help with 3 and 4 What is the multiplicative inverse of 1/4 How many arrangements can be formed using the letters in the word FILIBUSTER? 60 points please help me i would appreciate it! Which element of the US Constitution was developed to alleviate Anti-Federalist concerns? the Bill of Rights the supremacy clause the bicameral legislature the Three-Fifths Compromise Need help ASAP pleasePart 1:You started saving for a car when you were in middle school. You have done some research and discovered that it will cost you about $9,500 for a used car that would fit your needs. You were encouraged to invest some of your savings to help you get to your financial goal faster. So far you have saved $7,500. If you invest this money in a savings account with a 3.3% interest rate compounded annually, how long will it take to earn enough money to go purchase the car? Use the compound interest formula A = P (1 + i)n, where A is the accumulated amount, P is the principal, i is the interest rate per year, and n is the number of years. Round your final answer to the nearest tenth. Please help (and explain why the answer is right) i'd appreciate that