Estimate by rounding. 121÷42

Answers

Answer 1

Answer:

2.88095238095

Step-by-step explanation:



Related Questions

You are planning to run the distance on both Thursday and Friday. Write and solve an equation to find the number of mi. you need to run each day so you run a total of 13.1 miles over the five days.

Mon. 4.2
Tues. 1.6
Wed. 3.9
Thurs. x
Fri. x

Answers

after everything you've ran the total would be 9.7 but you'll need to run a total of 13.1 so you still need to run 3.4 miles so you Thursday and Friday you'll run 1.7 each.

Which is another way to express the problem 1 - (-7)

Answers

1+7

because when there are two negatives together you turn it into a positive and add

1 + 7

Because two negatives makes a positive. Hope this helps!

34÷3536
with a remainder please

Answers

0.00961538461

I typed this for 20 characters

How many numbers between 1 and 100 (inclusive) are divisible by 9 or 4?

Answers

There are 11 numbers divisible by 9 between 1 and 100, and 25 numbers divisible by 4 between 1 and 100. So there are 11 + 25 = 36, so 36 numbers divisible by one or the other, but this also includes every number which is divisible by both 9 and 4 twice.

Answer:34

Step-by-step explanation:

I had the answer on khaun academy

Write the equation of the line parallel to the given line and passing through the given point. y=−2x−1 through (4,3)

Answers

if the lines are parallel the slopes are the same so the slope is -2

the equation for a line given a point and a slope is

y-y1 = m(x-x1)

y-3= -2(x-4)

y-3 = -2x+8

y = -2x+11

how can i use variables to describe real world problems

Answers

A variable can be used to represent an unknown amount. Then you write an equation using the variable and based on the information you are given, and you solve the equation to find the unknown amount.

Here is an example.

Mary has money in a bank account. She received $20 for her birthday. She deposited the $20 in her account. After the deposit, she was told the account had a balance of $85. How much money did she have in the account before depositing the $20?

We don't know the amount she had before depositing the $20, so we will call that amount x. x is a letter used as a variable to represent an unknown amount.

She had x dollars in her account before depositing the $20.

After she deposited the $20, she now has x plus 20, or x + 20.

We are told her account now has $85, so x + 20 must equal 85.

That allows us to write an equation which we can then solve to find the amount of money she had in the account before depositing the $20.

x + 20 = 85

Subtract 20 from both sides.

x + 20 - 20 = 85 - 20

x + 0 = 65

x = 65

Since the variable x represents the amount of money in the account before depositing the $20 birthday money, we can now answer the question.

Mary had $65.

you can use varibales in real life problems by using them to describe the constants

Please simplify the following distributive property expression:

7(x-4)

Answers

Final answer:

To simplify 7(x-4), distribute 7 over x and -4 to get 7x - 28. This is an application of the distributive property in algebra.

Explanation:

To simplify the expression 7(x-4) using the distributive property, you multiply the number outside the parenthesis, which is 7, by each term inside the parenthesis. The distributive property allows us to remove the parentheses by distributing the multiplication over the subtraction within.

Here is the step-by-step simplification:

Multiply 7 by x, which is 7x.

Multiply 7 by -4, which is -28.

Combine the results to get 7x - 28.

Therefore, 7(x-4) simplifies to 7x - 28.

I NEED HELPP ASAP. im timed.
5. What property of equality is used to transform the equation from the first step to the second step?

[tex]\frac{x}{5}[/tex] =2 → X = 10

Answers

ANSWER

The Multiplicative Property of Equality


EXPLANATION

The Multiplicative Property of Equality allows us to multiply both sides of the given equation by the same quantity.

So for the given equation,

[tex]\frac{x}{5}=2[/tex]



When we multiply both sides by 5, we get;

[tex]5\times \frac{x}{5}=2\times 5[/tex]


[tex]\Rightarrow x=10[/tex]




write the following comparison as a ratio reduced to lowest terms 16 days to 2 weeks

Answers

16 days : 2 weeks

8 days : 1 week

The ratio of 16 days to 2 weeks, when converted to the same units and reduced to its simplest form, is 8:7.

To write the comparison of 16 days to 2 weeks as a ratio in the lowest terms, we first need to express both quantities in the same units. There are 7 days in a week, so 2 weeks equal 14 days. The ratio between 16 days and 14 days is therefore 16:14. This ratio can be reduced to lowest terms by dividing both numbers by their greatest common divisor, which is 2. This gives us the reduced ratio of 8:7.

So, the ratio of 16 days to 2 weeks, reduced to lowest terms, is 8:7.

6e - 7f = 8g + h, solve for f

Answers

Isolate the f. Note the equal sign. What you do to one side, you do to the other.

First, subtract 6e from both sides

6e (-6e) - 7f = 8g + h (-6e)

-7f = 8g + h - 6e

Divide -7 from both sides

(-7f)/-7 = (8g + h - 6e)/-7

f = -8/7g + h/-7 + 6/7e

f = -8/7g + h/-7 + 6/7e is your answer

hope this helps

Find the missing number to complete this division fact. 63 ÷ ∎ = 9

Answers

Hello AskMeBosh

The missing number in this equation is 7

This is because 9 * 7 is 63

So your answer would be 7

:)

63/7=9 the missing number is 7

What is the sale price of the bicycle?

Answers

so if the original price of the bicycle is $360 and the sale price is 5/6 of that you would multiple $360 by 5/6 which equals 300 now thats NOT your final price you have one more step which is to subtract the sale (money off) the original price 360-60 so the sale price of the bicyle is $300

answer:

$300

step-by-step explanation:

our original price is $360 and we need find 5/6 of 360

our first step is to multiply 360 by 5 which is equal to 1,800

our next step is it divide by 6 which is equal to 300

so our sale price is $300

A robot travels from position A to B to C to D, What composition of rigid motions represents those moves?

Answers

Assuming each movement is in a straight​ line, the composition

T <1,3> o T <4,0> o T <2,3>

represents the moves.

Each movement is in a straight line, the composition represents the moves <-5, 1>, <-3, 4>, <1, 4> and <2, 7>.

Given that, a robot travels from position A to B to C to D.

We need to find what composition of rigid motions represents those moves.

What is the composition of rigid motions?

Any way of moving all the points in the plane such that

a) the relative distance between points stays the same and

b) the relative position of the points stays the same.

There are four types of rigid motions that we will consider: translation, rotation, reflection, and glide reflection.

In a translation, everything is moved by the same amount and in the same direction. Every translation has a direction and a distance.

Therefore, each movement is in a straight line, the composition represents the moves <-5, 1>, <-3, 4>, <1, 4> and <2, 7>.

To learn more about the composition of rigid motions visit:

https://brainly.com/question/18800930.

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please help me please

Answers

a. sum of angles in triangle

b. supplementary angles

c. sum of angles is triangle=180 and supplementary angles =180

d. Parts whole postulate/subtraction

e. exterior angle equals the sum of the 2 remote interior angles

The FunWorld Obstacle Course is scored by awarding 10 points for every activity that is passed and by deducting 5 points for every activity that is failed. Bob passed 4 activities and failed 3 activities. Tom passed 7 activities and failed 4 activities. Who got a higher score?

Answers

Bob passed 4 activities, so 4 x 10 = 40 points. He failed 3, so 3 x 5 = 15

Total points = 40-15 = 25 points.


Tom passed 7, so 7 x 10 = 70 points. He failed 4, so 4 x 5  = 20

Total points = 70-20 = 50 points.



Tom got a higher score.

Which statement describes the rate of change of the following function?
f(x) = -6x - 7

A.
The function has a varying rate of change when x < 7.
B.
The function has a constant rate of change, decreasing for all x at a rate of 6.
C.
The function has a varying rate of change when x < 6.
D.
The function has a constant rate of change, decreasing for all x at a rate of 7.

Answers

The correct answer is B. The function has a constant rate of change, decreasing for all x at a rate of 6.

In order to find the rate of change, we have to identify the slope. The slope is always the coefficient of x when in slope intercept form. In this case it is -6, which means it decreases at a rate of 6.

To describe the rate of change of the function \( f(x) = -6x - 7 \), we first need to understand that the rate of change in the context of a function, particularly a linear function, is another term for its slope.

Now, let's recall what the slope of a linear function means. A linear function is of the form \( y = mx + b \), where \( m \) is the slope, and \( b \) is the y-intercept. The slope \( m \) determines how steep the line is, and it represents the change in the y-value (the output of the function) for a unit change in the x-value (the input of the function).

Looking at the given function \( f(x) = -6x - 7 \), we can see it is in the same form as \( y = mx + b \), with the slope \( m = -6 \) and the y-intercept \( b = -7 \).

The slope being -6 means that for every one unit increase in \( x \), the function's value decreases by 6 units. This is a constant rate of change because it does not matter what the value of \( x \) is; the function will always decrease by 6 for every one unit increase in \( x \).

Now, let's examine the given statements:

 A. The function has a varying rate of change when \( x < 7 \).
    - This statement is incorrect because the slope is constant at -6, regardless of the value of \( x \).
 
 B. The function has a constant rate of change, decreasing for all \( x \) at a rate of 6.
    - This statement is correct; it accurately describes the behavior of a linear function with a slope of -6.
 
 C. The function has a varying rate of change when \( x < 6 \).
    - This statement is also incorrect because, once again, the rate of change (slope) is constant for all values of \( x \).
 
 D. The function has a constant rate of change, decreasing for all \( x \) at a rate of 7.
    - This statement is incorrect; the coefficient of \( x \) in the function, which represents the slope, is -6, not -7.

Based on our analysis, the correct answer is:

 B. The function has a constant rate of change, decreasing for all \( x \) at a rate of 6.

What is the solution set of {x|x<-5} n {x|x>5}?

Answers

[tex]\{x|x < -5\}\ \cap\ \{x|x > 5\}=\O[/tex]

Look at the picture.

The common part does not exist.

find the inverse function f -1 (x) for the given function f (x) plz don't write a random answer to get points this is the fourth time I have posted this I need actual help

Answers

I've attached the answer to the first question with steps as well as notes on inverse functions.

A new sidewalk will be 4 feet wide 200 feet long and filled to a depth of 3 inches (0.25 foot) with concrete. How many cubic yards of concrete are needed?

Answers

The number of cubic yards of concrete that are needed to fill the sidewalk is 7.40741 cubic yards

Volume of a cuboidv = lwh

where

l = length

w = width

h = height

Therefore,

l = 200 ft

w = 4 feet

h = 0.25 feet

v = 200 × 4 × 0.25

v = 200 ft³

In yards the concrete will fill the following volume:

7.40741 yard³

learn more on cuboid here:https://brainly.com/question/849398?referrer=searchResults

Final answer:

To find the volume of concrete needed for the sidewalk, multiply the length, width, and depth of the sidewalk. Convert the volume from cubic feet to cubic yards by dividing by 27.

Explanation:

To find the volume of concrete needed, we need to multiply the length, width, and depth of the sidewalk. The length is given as 200 feet, the width is 4 feet, and the depth is 0.25 foot. Multiplying these values together gives us the volume in cubic feet. To convert this to cubic yards, we divide the volume in cubic feet by 27 (since there are 27 cubic feet in a cubic yard).

The volume of the sidewalk in cubic feet is 4 ft * 200 ft * 0.25 ft = 200 cubic feet. Dividing this by 27, we get the volume in cubic yards: 200 cubic feet / 27 = 7.41 cubic yards. Therefore, approximately 7.41 cubic yards of concrete are needed for the sidewalk.

whats the reciprocal of 1 8/11

Answers

First, change the mixed fraction into improper fraction. Change the whole number into a fraction, and add.

1 8/11 = 11/11 + 8/11 = 19/11

To find the reciprocal, flip the fraction.

The reciprocal of 19/11 is 11/19

hope this helps

Final answer:

The reciprocal of 1 ⁸/₁₁ is 11/19, which is calculated by first converting the mixed number to an improper fraction (19/11) and then flipping the numerator and denominator to get the reciprocal.

Explanation:

To find the reciprocal of 1 ⁸/₁₁ , you first need to convert the mixed number to an improper fraction. To do this, multiply the whole number by the denominator, add the numerator, and then write the result over the original denominator. In this case, 1 ⁸/₁₁ becomes (1×11 + 8)/11, which simplifies to 19/11.

Now, the reciprocal of a fraction is obtained by flipping the numerator and denominator. So the reciprocal of 19/11 is 11/19. Therefore, the reciprocal of 1 ⁸/₁₁ is 11/19.

Understanding the concept of reciprocals is important in mathematics because dividing by a number is the same as multiplying by its reciprocal. In this context, dividing by 1 8/11 is equivalent to multiplying by 11/19.

a store is selling a hat at 55 percent markup. the store originally paid $16 for the hat. what is the retail price for the hat

Answers

$24.80 is the new retail price for the hat


Answer:

$24.8

Step-by-step explanation:

Hello, i think I can help you with  this,you can easily solve this by using a rule of three

Step 1

define

the retail price for the hat will be the originally paid value plus 55%, it is equal to 155% of the original price

if

$16 ⇒100%

$x? ⇒155%

the relation is

[tex]\frac{16}{100}=\frac{x}{155}\\solve\ for\ x \\\frac{155*16}{100}=x\\x=\frac{2480}{100}\\ x=24.8[/tex]

the retail price is $24.8

Have  great day.

46 out of 310 seniors graduate with honors. What is the ratio of seniors graduating with honors to the total number of seniors

Answers

23:155 Simply its 46:310 and you simplify to 23:155

Final answer:

The ratio of seniors graduating with honors to the total number of seniors is 46/310, which simplifies to 23/155.

Explanation:

To find the ratio of seniors graduating with honors to the total number of seniors, you would divide the number of seniors graduating with honors by the total number of seniors. In this case, 46 seniors graduate with honors out of a total of 310 seniors.

Therefore, the ratio is 46/310, which can be simplified to 23/155 when reduced to the lowest terms.

How is graphing (0,12) different from graphing (12,0)

Answers

when graphing (0,12) the point will be on the y-axis

when graphing (12,0) the point will be on the x-axis

By graphing the given points we understood that (0,12) is on the y-axis and (12,0) is on the x-axis.

We need to explain how is graphing (0,12) different from graphing (12,0).

How to plot the point on the cartesian plane?

Given a point, (a, b), you plot the point in the Cartesian plane by finding the number a on the horizontal, or x-axis; then you trace directly up or down from that spot, moving parallel to the vertical, or y-axis until you reach the height of the number b.

Now, plot  (0,12) and (12,0) on the Cartesian plane.

In the graph plotted we can see (0,12) is on the y-axis and (12,0) is on the x-axis.

Therefore, by graphing the given points we understood that (0,12) is on the y-axis and (12,0) is on the x-axis.

To learn more about the points on the x-axis and y-axis visit:

https://brainly.com/question/3451809.

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Which is a correct verbal expression for 9+ n?

Answers

Nine plus a unknown number equals unknown.

Answer:

The sum of 9 and a number.


Step-by-step explanation:

Sum = Add.

9 = 9

Number = n


Hope this helps :-)


can y’all help please . i don’t know how to do this .

Answers

I'll explain how, if you want the answers to fact check, ask in the comments.

If the first number is in the ones place, and there's no notation, it's 10^0 (number * 1), if the first number is in the tens place, it's 10^1 of the number if it was pushed back into the ones place. If the first number is in the hundreds place, it's 10^2 if it was...

You might get the idea, same applies to negative powers of 10:

If the first number is in the tenths place, it's 10^-1, if the beginning of the number was moved forwards into the ones place, and so on.

I hope I helped you, please ask questions if you need them, I might have delivered a confusing explanation.
for scientific notation you have to move your decimal to where you number value is between 1-10

so for example on number one you are going to have to move your decimal to the right 2 times to get 2.9 (a value between 1-10)

now you have to write it in scientific notation-ask yourself two questions: how many times did you move your decimal? we moved it 2 times in this problem. and was it to the right or to the left? if you moved it to the right (which is the direction we moved it in this problem) its going to be a negative exponent so our answer would be 2.9x10^-2

same thing with number 2 starting with 64,000 to get our value to a number between 1-10 we need to move our imaginary decimal at the end of our value 4 times to make 6.4

two questions:
how many times did we move it? 4
did we move it to the left or to the right? to the left (so our exponent is positive)

making our answer 6.4x10^4

if you want me to check your answers after you have finished let me know:)

I am a whole number. When rounded to the nearest ten, the answer is 210. The sum of my digits is 4. What number am I?

Answers

i think the answer is 214 i am not sure but i think it is

The number you are looking for is 211.

To find the number that meets the given criteria, we need to consider a few steps

1. The number, when rounded to the nearest ten, is 210.

2. The sum of the digits of the number is 4.

First, let's consider the numbers that round to 210 when rounded to the nearest ten. These numbers fall within the range of 205 to 214 (inclusive).

Next, let's identify which of these numbers has digits that sum to 4.

- 205: (2 + 0 + 5 = 7)

- 206: (2 + 0 + 6 = 8)

- 207: (2 + 0 + 7 = 9)

- 208: (2 + 0 + 8 = 10)

- 209: (2 + 0 + 9 = 11)

- 210: (2 + 1 + 0 = 3)

- 211: (2 + 1 + 1 = 4)

- 212: (2 + 1 + 2 = 5)

- 213: (2 + 1 + 3 = 6)

- 214: (2 + 1 + 4 = 7)

From this list, the number 211 is the only number within the range that has digits summing to 4.

0.02 is ten times as much as 0.2

Answers

No, 0.2 is ten times greater than 0.02


one integer is 5 more than another. their product is 50. Find the integers

Answers

five times 10. because 10 is 5 more that 5 and 5 times 10 is 50 so the answer wound be 5 and 10 or 5×10=50

30% of the cars sold by Car Dealer A were blue. 50% of the cars sold by Car Dealer B were blue. Which statement must be true?


If both dealers sold the same number of cars, Car Dealer B sold 20 more blue cars.



Car Dealer B sold more blue cars than Car Dealer A did.



If Car Dealer A sold 50 total cars, 30 would be blue.



If both dealers sold 70 total cars, Car Dealer B sold 14 more blue cars.

Answers

Answer:

If both dealers sold 70 total cars, Car Dealer B sold 14 more blue cars.

Step-by-step explanation:

If dealer A sold 70 cars, this means they sold

0.3(70) = 21 blue cars.

If dealer B sold 70 cars, this means they sold

0.5(70) = 35 blue cars.

This is 35-21 = 14 more blue cars than dealer A.

Answer:

If both dealers sold 70 total cars, Car Dealer B sold 14 more blue cars.

Step-by-step explanation:

math

:0

What is the slope of this line?

Answers

The slope of this line is 1/4, because slope is rise/run. This line rises 1 for every 4 it runs. The slope is positive because the line is moving upward.

1/4 because u have to do rise over run
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