The express elevator in a skyscraper goes up 51 floors in 12¾ seconds. How many floors does the elevator go in 2 seconds? A. 8½ B. 4 C. 8 D. 5

By definition an irrational number is one that is not rational. Therefore, it is not possible for a number to both rational and irrational.

The Equation i did for this is  930 + -220= 710, I did a Negative on 220 is Because The Text States that it is "under" The Sea level.

The height of the lava that is measured from the sea level will be 710 feet.

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

The lava in a volcano rest 220 ft below sea level when the volcano erupts the lava shoots 930 ft upward.

The height of the lava that is measured from the sea level will be given as the difference between the numbers 930 ft and 220 ft.

⇒ 930 - 220

⇒ 710 feet

The height of the lava that is measured from the sea level will be 710 feet.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

The ratio table is completed by finding values that are equivalent to the ratio 16:10, which simplifies to 8:5. The corresponding values are calculated by setting up proportions based on the original ratio.

To complete the ratio table that shows ratios equivalent to 16:10, we first understand that the ratio can be simplified to 8:5 by dividing both terms by 2.

We can use this simplified ratio to find missing values in the table.

For the row with 2 in the first column, the second column should be 2 times 5/8 (since 8:5 is equivalent to 16:10) to maintain the ratio equivalency.

This gives us the value 2*(5/8)=1.25.

In the row where the second column is 36, we need to determine the equivalent in the first column.

We set up the proportion 8/5=x/36, and solving for x gives us 8*(36/5)=57.6.

The last row given is 72 in the second column.

To find the corresponding first column value, we use the ratio 8/5=x/72 and solve for x to find 8*(72/5)=115.2.

The filled in ratio table should look like this:

To be a Pythagorean triple, the numbers must satisfy the Pythagorean theorem:

[tex]a^2+b^2=c^2[/tex]

so check:

[tex]45^2+28^2=53^2\\\\2025+784=2809\\[/tex]

and that holds, so the statement is TRUE

0.23, 1/5, 19%

i believe that is correct

Hey there!!

Given equation :

... 3x - 2 + 5x = 4x + 5 - 2x

Combining like terms :

... 8x - 2 = 2x - 5

Subtracting 2x on both sides :

... 6x - 2 = - 5

Adding 2 on both sides :

... 6x = - 3

Dividing by 6 on both sides :

... x = -1/2 = -0.5

Hence, the answer is -0.5

Hope my answer helps!

Answer:

12:50 AM

Step-by-step explanation:

60 minutes is 1 hour. add one hour to the start time to get 12:50 AM

Answer:

12:50 AM

Step-by-step explanation:

Add one hour to the start time

Answer:

150 oz.

Step-by-step explanation:

There are already 150 ounces of alloy of nickel.

Of this 150 oz, 70% is pure i.e. nickel content = 150(0.7) = 105 oz

Now available is

Nickel       Other metals

105                  45

Let x oz of pure nickel is added.

Then new alloy will have 105+x oz nickel in total of 150+x oz.

Percentage pure = [tex]\frac{105+x}{150+x} =85%[/tex]

Simplify to get

[tex]\frac{105+x}{150+x} =\frac{85}{100} \\\\Cross multiply:\\85(150+x) =100(105+x)\\12750+85x =10500+100x\\100x-85x = 12750-10500\\15x = 2250\\x = 150[/tex]

Hence answer is 150 oz should be added.

Answer : option D

Find the solution of 7x = 35

To solve for x , we need to get x alone

so we divide by 7 on both sides

[tex]\frac{7x}{7} =\frac{35}{7}[/tex]

So x= 5

To verify the solution we plug in 5 for x in the given equation 7x= 35

x=5

We have, 7x= 35

7(5)= 35

35= 35

So verified

The solution of expression is,

D. x = 5; 7(5) = 35, 35 = 35

We have to give that,

An equation to simplify,

7x = 35

Now, Simplify the equation as,

7x = 35

Divide on both sides by 7,

7x/7 = 35/7

x = 5

Hence, The solution is, x = 5

And verify it as,

7x = 35

Put x= 5;

7 (5) = 35

7 × 5 = 35

35 = 35

Therefore, The solution is, x = 5

To learn more about the equation visit:

brainly.com/question/28871326

#SPJ6

4+3=7 and 7x2 is 14 so cooper has 14 and nando and jill have 7 total.

Answer:

Hi 14 goldfish

Step-by-step explanation:

The equation would be 4+3*2 and the final answer would be 14 goldfish

Without knowing the ages of all the different members of the club, I believe that the mean would go down due to 24 being an outlier. You generally take the mean by adding up all the numbers and dividing by all the # of given values. Outliers such as 24 would skew the results leaning none way or the other, in this case making it lower than the previous mean.

Answer:it decreased

Step-by-step explanation:

4x+9=2x−6

Step 1: Subtract 2x from both sides.

4x+9−2x=2x−6−2x

2x+9=−6

Step 2: Subtract 9 from both sides.

2x+9−9=−6−9

2x=−15

Step 3: Divide both sides by 2.

2x

2

=

−15

2

x=

−15

2

Answer:

x=-15/2

Here are you're answers:

Number sentence: 25 - 14 = 11

Word sentence: twenty-five minus fourteen equals eleven

The three boxes:

11

25 14

Hope this helps!

Express the radius of the Sun as a proportion to radius of Earth:

695500/6378 = 109.04...

Now if a baseball would represent Earth, the model for Sun would have to be about 110 times larger than a baseball. A baseball is about 3" in diameter, so the model for Sun would have to be about 330" (or 27 feet) in diameter.

The answer should be no it is not reasonable to use baseball as a model for the Earth because the Sun would need to be about the size of a hot air balloon!

The rate John is saving is 25. How? You can do 160-110 (to find difference). After this, you will get 50. You can now divide this by 2 (because the problem says two months), which is 25. You can see if this is correct by adding 25 to 110 two times.

110 + 25

= 135

135+25

=160

John is saving money at a constant rate is $25.

Given that, suppose he initially has $110 saved and after 2 months he has $160 saved.

The definition of a rate is a quantity measured and compared to another quantity measured (such as a number of miles per hour) or is the cost of something.

Now, money saved=160-110=$50, time 2 months

Rate of money per month=50/2=$25

Therefore, John is saving money at a constant rate is $25.

To learn more about the rate of money saved visit:

https://brainly.com/question/11616721.

#SPJ2

it would be positive because the positive number is bigger than the negative number.

Combine the two terms. Note that one negative sign and one positive sign will result in a negative sign.

8704 + (-7725) = 8704 - 7725 = 979

979 is the resulting number, which is a positive number

Positive is your answer

hope this helps

Answer:

6,8,10

Step-by-step explanation:

Two consecutive even integers would have difference of 2

Hence we can assume the three consecutive integers to be of the form

a-2, a and a+2

Smallest number = a-2 and

Largest number = a+2

Twice the smallest number + 3 times largest number =42 (given)

2(a-2)+3(a+2) = 42

2a-4+3a+6 =42

5a +2 =42

Subtract 2 and then divide by 5

5a = 40 and a = 8

Hence the three numbers are 6,8 and 10

Answer:

x y

4 0

6 2

8 4

Step-by-step explanation:

y=x-4

Replace x each x variable

4-4=0

6-4=2

8-4=4

To complete the table for the given rule y = x - 4, the values of y are found by substituting the x-values into the equation, resulting in y-values of 0, 2, and 4 for x-values of 4, 6, and 8, respectively.

The student has asked to complete a table for the given rule: y = x - 4. To find the value of y for each given x, we simply substitute the x values into the equation and solve for y.

For x = 4, y = 4 - 4 = 0.

For x = 6, y = 6 - 4 = 2.

For x = 8, y = 8 - 4 = 4.

Therefore, the completed table is:

x = 4, y = 0

x = 6, y = 2

x = 8, y = 4

2.7 cm per second. Because it’s 161 divided by 60

It would be 3 cm per second. You need to divide the 161 cm/min by 60 (60 sec + 1 min) 161 / 60 = 2.68333.., which is rounded to 3 cm/sec.

Answer:

Now you can give brainliest to the person that answered the question

Step-by-step explanation:

cause the answer helped me

The absolute value inequality to represent the number of words Constraint is 470 ≤ X ≤ 530

Number of words required = 500

Error or deviation = 30

This means that :

Therefore, an absolute value which represents the acceptable number of words :

Minimum ≤ number of words ≤ maximum

Hence, the absolute value inequality for the number of words required is 470 ≤ X ≤ 530

Learn more : https://brainly.com/question/15748955

The slope of the linear function that the table represents is one

The general equation of a straight line is -

[y] = [m]x + [c]

where -

[m] is slope of line which tells the unit rate of change of [y] with respect to [x].

[c] is the y - intercept i.e. the point where the graph cuts the [y] axis.

The equation of a straight line can be also written as -

Ax + By + C = 0

By = - Ax - C

y = (- A/B)x - (C/A)

Given is a table in which [x] represents the age in years of a collectible baseball card, and [y] represents its value in dollars.

We have the following table -

Cards age [x]                 5                      10                      15                    20    

Value in dollars [y]      $0.75               $5.75                $10.75            $15.75

We can calculate the slope of the linear function as -

m = (5.75 - 0.75)/(10 - 5)

m = 5/5

m = 1

Therefore, the slope of the linear function that the table represents is one.

To solve more questions on straight lines, visit the link below-

brainly.com/question/29030795

#SPJ2

[Refer to the image for full question]

f(x) = x + 4   ; -4 ≤ x < 3

f(-4) = (-4) + 4

      = 0

f(3) = (3) + 4

     = 7

R: 0 ≤ y < 7    ⇒   [0, 7)

***************************

f(x) = 2x - 1   ; 3 ≤ x < 6

f(3) = 2(3) - 1

      = 6 - 1

       = 5

f(6) = 2(6) - 1

      = 12 - 1

      = 11

R: 5 ≤ y < 11   ⇒   [5, 11)

******************************

Now, put them together:   [0, 7) U  [5, 11)   = [0, 11)

Answer: B

answer is [0,11)

f(x) = x+4 is the first function

We plug in -4 for x  in f(x) = x+4

f(-4) = -4 + 4 = 0

So the graph starts at (-4,0)

Now plug in 3 for x  in f(x) = x+4

f(3) = 3 + 4 = 7

So the first function ends at (3,7)

Second function is f(x) = 2x - 1

We plug in 3 for x  in f(x) = 2x-1

f(3) =2(3)-1 = 5

So the second graph starts at (3,5)

We plug in 6 for x  in f(x) = 2x-1

f(6) =2(6)-1 = 11

So the second graph ends at (6,11)

3<=x<6 so 6 is excluded from x

The range of the following piece wise function is 0  to 11

answer is [0,11)

In decimals, the tenths place is  right after the decimal point. Therefore, the value of the digit in the tenths place of 0.88 is 8.

Answer:

7 x 10^3

Step-by-step explanation:

7 x 10 x 10 x 10

To find the value of the expression 7 x 10^3, multiply 7 by 10 raised to the power of 3 to get 7,000.

To find the value of the expression 7 x 103, you need to multiply 7 by 10 raised to the power of 3. When you raise a number to the power of 3, you multiply it by itself three times. In this case, you need to multiply 10 by itself three times, which gives you 1000. So, the value of 7 x 103 is 7,000.

https://brainly.com/question/33016744

#SPJ2

There are 5280 feet in a mile, so 900 feet = 900/5280

=  0.1705 miles to nearest 10,000th of a mile

Total distance =  3.25 + 0.1705

= 3.4205 miles

In miles, 3.420455

In feet, 18060.0024

Hope this helps :)