An estimate of the height, H metres, of a tall building can be found
using the formula
H = 3f + 15
where the building is f floors high.
A building is 85 floors high.
The real height of the building is 260m.
Work out the percentage error when estimating the height of this building using
the formula given.

Answers

Answer 1

Given that,

An estimate of the height, H metres, of a tall building can be found  using the formula :

H = 3f + 15

where the building is f floors high.

f = 85

The real height of the building is 260 m.

To find,

The percentage error.

Solution,

We have,

H = 3f + 15

Put f = 85 in the above formula

H = 3(85) + 15

H = 270 m

Error,

[tex]E=\dfrac{270-260}{260}\times 100\\\\=3.84\%[/tex]

So, the required error is 3.84%.


Related Questions

karl drove 616.7 miles 616.7 miles for each gallon gallon of gas the car can travel 41 miles 41 miles what is a reasonable estimate of the number of gallons gallons of gas karl used select all that apply

Answers

Answer:

15, 16 or any integer close to those numbers

Step-by-step explanation:

Since, Karl drove 616.7 miles for each gallon of has and the car can drive 41 miles for each gallon, we need to divided 616.7 by 41 to get an answer of 15.0414634146 or an estimate of 15 or 16. It matters on whether the answer shows.

Please help I’ll give you brainlist or something

Answers

Answer:

G is 4,2    f − 1 ( x ) = x 5 + 2 5

Step-by-step explanation:

Do y’all know the answer to this math question?

Answers

9514 1404 393

Answer:

  BC = 35

Step-by-step explanation:

The sum of the segments is the overall length.

  AB +BC = AC

  (2x +6) + (6x +5) = 51 . . . . substitute given values

  8x +11 = 51 . . . . . . . . . . . . . collect terms

  8x = 40 . . . . . . . subtract 11

  x = 5 . . . . . . . . . divide by 8

  BC = 6x+5 = 6(5) +5 . . . . . . . . use the value of x to find BC

  BC = 35

SOS NEED NOW
What is the common difference between successive terms in the sequence?
2, 8, 14, 20, 26, ...
-6
-4
4
6

Answers

Answer:

Step-by-step explanation:

common difference is 6

A quadrilateral has the following qualities.

1. opposite sides are congruent and parallel
2. opposite angles are congruent

Which figure is being described?
kite
parallelogram
triangle
trapezoid

Answers

Answer:

Concept: Vector Qualities

A quadrilateral is defined as any figure with two parallel sides, connected linearly aka a square, with four defined right angles To be congruent and parallel they must be slanted To be congruent they must be mutually parallel Hence it is a parallelogram

Answer:

kite

Step-by-step explanation:

1.opposite sides are congruent and parallel

2. opposite angles are congruent

9+x/3=2

what is x in this equation?

Answers

Answer:

-21

Step-by-step explanation:

9 + x/3 = 2

x/3 = -7

x=-21

I hope this helped, and if my answer was right, please mark this as brainliest! Thank you!

What is the value of x?​

Answers

Answer:

38 is the answer to your question hope that helps

Answer:

71° and 71°

Step-by-step explanation:

This is isosceles triangle.

So,

[tex]38 + x + x = 180 [/tex]

[tex]38 + 2x = 180[/tex]

[tex]2x = 180 - 38[/tex]

[tex]2x = 142[/tex]

[tex]x = 142 \div 2[/tex]

[tex]x = 71[/tex]

Hope this will help you.

and comment me to tell your country

Someone please help me on these 2 problems!

Answers

1) function  2) not a function

the first one is a function because its y values are the same number (3), which means it is a horizontal line and horizontal lines are functions.  

the second one is not a function because the coordinates cannot have different inputs but different outputs. each input must have only one output.

the coordinates for the second one are:

(2,5); (1,1); (1,2); (3,2)

and a function cannot have two same x-coordinates. it must pass the vertical line test which is a way to tell if something is a function or not. since the second graph does not pass the vertical line test, it is not a function

hope this helps :)

2 Solve this complex fraction (1 Point) 3​

Answers

Answer:

WHat do you mean

Step-by-step explanation:

All of the middle-school mathletes solve math problems at the same pace. Working together, six mathletes complete all of the summer homework in 22 hours. How many hours will the homework take if the number of mathletes? PLEASE HELP

Answers

Answer:

44 hours

Step-by-step explanation:

because if its half it will take twice as long

Answer:

44 hours

Step-by-step explanation:

If you decrease the amount of participants in half, the amount of time that it takes per work load automatically doubles. So if the original amount of hours that it took with six participants is 22. If we cut six into half, then 22 hours would double into 44. Then it would become 44 hours with three people. Also, for check, I did have this problem for RSM.

Donald bought a box of golf balls for $9.30. There were 18 golf balls in the box. About how much did each golf ball cost? Rename the decimal dividend as a whole number that is compatible with the divisor to estimate the quotient.

Answers

Answer:

$0.52 per ball approx.

Step-by-step explanation:

Step one:

given data

we are told that the cost of the box of gulf is $9.30

and there are 18 golf balls in the box

Required:

we are to determine the cost of each ball

the cost is

Step two:

Cost per ball= total cost of the box/number of ball

Cost=9.30/18

Cost= $0.52 per ball approx.


I need help with this please

Answers

Answer:

omg whats the answer

Step-by-step explanation:

In a park of dimensions 20 m × 15 m, there is a L shaped 1m wide
flower bed as shown in Fig. 9.61. Find the total cost of manuring for
the flower bed at the rate of Rs 45 per m2
.

Fig. 9.61

117. Dimensions of a painting are 60 cm × 38 cm. Find the area of the
wooden frame of width 6 cm around the painting as shown in Fig.
9.62.

Answers

poopdndiqodncbiwmqf jdk elmer

70 = 7x - 7(2x - 5)
How do I solve this ?

Answers

Answer:

x=-5

Step-by-step explanation:

70=7x-7(2x-5)

70=7x-14x+35

70-35=-7x

35=-7x

5=-x

-5=x

Can someone please help me!

Answers

Answer:??? sry

Step-by-step explanation:

Find the equation of the line.
Use exact numbers.
y = __x+__

Answers

Dang what grade are you in I can’t even answer this and I’m in 11th

What is the answer to 22.4 x 1.73

Answers

the answer is 38.752

Answer:

38.752

Step-by-step explanation:

plz plz plz help me....


the product of digits in a two digit number is 12. the number formed by interchanging the digits of that number will be 9 less than the original number. find the original number.​

Answers

Answer:

Let the tens digit of the required number be x and the units digit be y. Then,

x+y=12 .........(1)

Required Number = (10x+y).

Number obtained on reversing the digits = (10y+x).

Therefore,

(10y+x)−(10x+y)=18

9y−9x=18

y−x=2 ..........(2)

On adding (1) and (2), we get,

2y=14⟹y=7

Therefore,

x=5

Hence, the required number is 57.

Step-by-step explanation:

Hope it is helpful...

Step-by-step explanation:

Let X be the 1st digit and Y be the 2nd digit of the two digit number.

We have X * Y = 12 and (10X + Y) = (10Y + X) + 9.

=> XY = 12 and 9X = 9Y + 9

=> XY = 12 and X = Y + 1

Therefore X = 4 and Y = 3. => Number is 43.

what is 9m + 5m + 3?

Answers

Answer:

17m

Step-by-step explanation:

SOLUTION: 14m+3

EXPLANATION:

Simplify

combine like terms

9M+5M+3

14M+3

A pound of apples costs $ 1.48 Ms. Perez buys 9.7 pounds to make 5 apple tarts, how much did Ms. Perez pay for the apples please show your work. 20 points

Answers

Answer:

$14.36

Step-by-step explanation:

you multiply 1.48 × 9.7 and the product would be 14.356 and since we are trying to find how mush money Ms. Perez spent we round up and the final cost is $14.36

What is the equation of the line in slope-intercept form?
Write your answer using integers, proper fractions, and improper fractions in
simplest form.

Answers

Answer:

equation: y = -6x -20

Step-by-step explanation:

pass (0,-20) (-10,40)

y = mx + b

y intercept (b) = -20

slope (m) = (40 - -20) / (-10 - 0) = 60 / -10 = - 6

equation: y = -6x -20

function or not a function?

Answers

Answer:

Not a function.

Step-by-step explanation:

There must only be one output per input but here we see the input 18 has two outputs ; 3 and 15 therefore this is not a function.

1. Melissa took out a loan of $50,000 with an interest rate of 2.3% for the start-up of the Math Cafe. How much will she owe the bank if the loan term is for five years? Explain how you got your answer.

Answers

Answer:

$55,750 a

Step-by-step explanation:

Given Principal P = $50,000

Rate R = 2.3%

Time T = 5 years

Get the interest first

Simple interest = PRT/100

Simple interest = 50,000*2.3*5/100

Simple interest  = 500*2.3*5

Simple interest  = $5,750

Amount = Principal + Interest

Amount = $50,000 + $5,750

Amount = $55,750

Hence she will owe the bank $55,750 after 5 years

Jadon wants to buy a new game system that costs
$109, including tax. He currently has $15 saved. He
began a pet sitting service and charged $5 per dog.
What is the fewest number of dogs he would have to
watch to have enough money to buy the bike?

Answers

Answer:

try adding togther

Step-by-step explanation:

Jaxon and Lucius were selling lemonade. Jaxon and Lucius have a difference of 5 cups sold. Jaxon was selling his for $6 a cup and Lucius was selling his for $3 a cup and together they made $300 in revenue. How many cups did Jaxon and Lucius sell each?



1. Define your variables: x is ______. y is ________. (4 points)

2. Write two equations (6 points)

Solve this system of equations using all three methods: graphing, substitution and elimination.

Show all your work.

Remember your graph should match the answers for the other two methods. All answers should be identical, it's just 3 different ways of solving the same problem.



3. Solve using graphing. Include your graph with labels. (10 points)

4. Solve using substitution. Show all work. (10 points)

5. Solve using elimination. Show all work. (10 points)

6a. What is the solution? This should be written as an ordered pair. (2 points)

6b. What does the answer mean in context of the problem? In other words, explain your answer with words/labels. (3 points)

Answers

Answer:

the points are (35,30) you may need to search a graph online i used desmos

Step-by-step explanation:

1.     x= Jacksons Cups   y= Lucius Cups2.       x -  y= 5           6x + 3y = 300Substitution:                                                 6 (y+5) + 3y = 300             6y + 30 + 3y = 300                9y =   270                dived both by 9                         y=30        Sub y for other equation            x - 30 = 5         add 30 to both sides           x = 35        Answer:   (35, 30)     Graphing:   x- y = 56x+ 3y = 300solve both for y y = x-5 6x + 3y = 300minus 6x from both sides the points are in y = mx + b y= 1x -5 y= -2x + 100  I will also leave the ss of the graph in the comments if you cannot see it  My labels for the x-axis is Jacksons cups and y Is luscious cups.  Elimination:x - y = 5 6x + 3y = 300 First I manipulated the equations by the following    - 6 (x - y = 5 )   1(6x  + 3y = 300 )      -6x + 6y = -30        6x + 3y  = 300          The 6 x's cancel  and add the y's and real numbers together           9y = 270           dived both by 9                   y= 30        Sub y for other equation                      x - 30 = 6                add 30 to both sides                x= 30  The points are  (35, 30) The solution is (35,30)They represent how many cups they sold.   35 is Jackson cups and 30 is Lucious's cups  

Two sides of a rectangle have lengths 5 and 8. What is the perimeter

Answers

Answer: 26

Step-by-step explanation: 2 sides are 8 and 2 sides are 5. 5 plus 5 equals 10 and 8 plus 8 equals 16. Finally, 16 plus 10 is 26. Hope this helps! And I would really appreciate getting brainliest if I get it it right!

Answer

i think 1600

Step-by-step explanation:

it maybe 1600 bc if you times 5 and 8 two times you get that answer  i am not smart but maybe

Francas leaves home to go to the arcade and walks 300 m at a constant speed for 15 minutes. Francas sees a swarm of bees and runs for 10 minutes slowing down gradually because he is out of breathe. He stop at a bench 450 m away from his house. Francis sits and rest for 5 minutes. Francis continue on his trip to the arcade, quickly walking 250 m at a constant speed for 10 minutes. Create a distance time graph for the following story.

Answers

Answer:

it wont let me write the graph

Step-by-step explanation:

one more than the product of 6 and a number v?


Plzzzzzz help me:(


And PLZZZ answer right


Thank u!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!:)

Answers

Hello there!

The answer would be 1+6*f

Hope this helps

Have a fantastic day

7,707 ÷ 24 with remainder

Answers

Answer:

321 remainder 3

Step-by-step explanation:

The remainder of 7,707 ÷ 24  is 3

What is the quotient remainder theorem?

When we want to prove some properties of modular arithmetic we often make use of the quotient remainder theorem. It is a simple idea that comes directly from the long division. Given any integer A and a positive integer B, there exist unique integers Q and R such that

A= B * Q + R where 0 ≤ R < B

Given here 7,707 ÷ 24  this can be written as follows:

7707 = 321×24 + 3

Thus comparing with the above equation we get the remainder as 3

Hence the required form is  7707 = 321×24 + 3

Learn more about the remainder theorem here:

https://brainly.com/question/29046143

#SPJ2

Use graphs and tables to find the limit and identify any vertical asymptotes of limit of 1 divided by the quantity x minus 4 as x approaches 4 from the left . (2 points)
∞ ; x = -4
-∞ ; x = -4
-∞ ; x = 4
1 ; no vertical asymptotes

Answers

Answer: By using the graphs and tables, the best and most correct answer among the choices provided from your problem about vertical asymptotes is the first choice or letter c)   -∞ ; x = 4. It is shown that according to the condition in the problem, the limit is negative infinity and the vertical asymptote is x = 4. I hope it has come to your help.

Step-by-step explanation:

Answer:

-infinity, x=4

Step-by-step explanation:

Took the test and the answer was right

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