The height of two boys are in the ratio of 4:5 the shorter boy is 80 cm what is the height of the taller boy?​

Answers

Answer 1

Answer:

100cm

Step-by-step explanation:

The relationship between the ratio and the heights is 20. i.e 4 : 5 = 80 : 100

Hope this helps, please tag brainliest.

Answer 2

The height of the taller boy is 100cm.

What is ratio?

Ratio, is a term that is used to compare two or more numbers. It is used to indicate how big or small a quantity is when compared to another. In a ratio, two quantities are compared using division.

Let the height of the taller boy be x cm and smaller boy be y cm.

According to the given question.

The ratio of height of the two boys is 4:5.

Since, it is obvious that 4:5 is the ratio of the height of smaller boy to the taller boy. Because k will be the ratio of proportionality then 4k will given the smaller value and 5k will give the larger value therefore, 4:5 represents the ratio of height of smaller boy to the taller boy.

[tex]\implies \frac{y}{x} =\frac{4}{5}[/tex]

Also, the height of the shorter boy is 80cm.

Therefore,

[tex]\frac{80}{x} = \frac{4}{5}[/tex]

[tex]\implies 80\times 5 = 4\times x[/tex]

[tex]\implies 400 = 4\times x[/tex]

[tex]\implies x = \frac{400}{4}[/tex]

[tex]\implies x = 100cm[/tex]

Hence, the height of the taller boy is 100cm.

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Related Questions

Easy math help pls iiiii

Answers

The answer is D= 3f/4h -g^3/4h

Can anyone help me with this one

Answers

The inequality is 10j is less than or equal to 130

10j ≤ 130

Put the following in order from least to greatest. 3/4, 66.66%, 5/7​

Answers

Answer:

3/4=63/84

66.66%=56/84

5/7=60/84

⇒66.66%; 5/7; 3/4

Step-by-step explanation:

Original: $39.99
New: _________
%Decrease: 15%

Answers

Answer:

33.99

Step-by-step explanation:

Discount = Original Price x Discount %/100

Discount = 39.99 × 15/100

Discount = 39.99 x 0.15

You save = $6.00

Final Price = Original Price - Discount

Final Price = 39.99 - 5.9985

Final Price = $33.99

Answer:

Approximate ≈ $33.99

Step-by-step explanation:

Original: 39.99

New: x

Percent Decrease: 15%

15% of 39.99 = 0.15(39.99) = 5.9985

39.99 - 5.9985 = 33.9915 = 33.99

-Chetan K

Given the function f(x) = 2x + 5, what would the input be with an output of -9

Answers

Answer:

The input is -7

Step-by-step explanation:

f(x) = 2x + 5,

Let f(x) = -9

-9 = 2x+5

Subtract 5 from each side

-9-5 =2x+5-5

-14 =2x

Divide by 2

-14/2 =2x/2

-7 =x

Answer:

The would be -7.

Step-by-step explanation:

Given function :-

f ( x) = 2x + 5.

given output, f( x) = -9

plug the f(x) as -9.

-9 = 2x + 5

Move the constant to the left hand side and change their sign.

-9 - 5 = 2 x-14 = 2x

Divide both side by 2.

-14/2 = 2x / 2-7 = x

Therefore, the input of this function would be -7.

please someone help me asap! Im giving brainliest and 5 starts AND a thanks :)

Answers

Answer:

b. two solution its very sample

Answer:

C: No solutions.

Step-by-step explanation:

When solving an equation and it provides a false statement, it implies that there are no values that could satisfy the given equation.  Simply put, the word "equation" in itself must provide equal values on either sides of the equal sign.

No solution” means that there is no value, not even 0, which would satisfy the equation.

Therefore, the correct answer is C: No solutions.

Please help! A consumer survey conducted in two consecutive years determined that a fixed basket of goods and services cost $95.00 in year 1 and $96.25 in year 2.

The rate of inflation from year 1 to year 2 is _

Answers

Year 1 =old price =$95

Year 2 = new price = $96.25

The inflation rate is the difference in price between two Given period :

Inflation rate :

(Change in price / old price) * 100%

((New price - old price) / old price) * 100%

((96.25 - 95) / 96) * 100%

= (1.25 / 95) * 100%

= 0.0131578 * 100%

= 1.315%

Please help!

Select the only equation type that can be modeled as a continuous linear function

Question 1 options:

f(x)=12x

f(x)=5x−3

f(x)=x2−7

f(x)=f(x−1)×2, f(1)=4

Answers

Answer:

A.

Step-by-step explanation:

f(x) = 12x

since here, x>=0, the function will be continous as a linear And will have a straight lined graph

8: Harry is 3 years older and Andy is twice as old as
Sam. The total of their ages is 27. If Sam is x years old
form an equation using this information.

Answers

Step-by-step explanation:

given,

Harry = 3yrs

Andy = 2x ( twice as old as sam )

sam = x

their sum = 27

a/q

2x + x + 3 = 27

3x = 27 - 3 = 24

x = 24/3 = 8

x = 8

therefore, age of sam is 8 and Andy is 16 and Harry is 3.

the equation is

2x + x + 3 = 27

hope this answer helps you..and may u have a great day ahead!

The equation formed using the information given is x + (x + 3) + 2x = 27. Sam is 6 years old. Let x be Sam's age.

According to the given information:

1. Harry is 3 years older than Sam, so Harry's age is (x + 3) years.

2. Andy is twice as old as Sam, so Andy's age is 2x years.

3. The total of their ages is 27, so we can add their ages together and set it equal to 27:

x + (x + 3) + 2x = 27

Now, let's simplify the equation:

Combine like terms:

x + x + 3 + 2x = 27

Combine the x terms:

4x + 3 = 27

Now, we want to isolate the variable x on one side, so let's move the constant term (3) to the other side of the equation by subtracting 3 from both sides:

4x = 27 - 3

4x = 24

Finally, solve for x by dividing both sides by 4:

x = 24 / 4

x = 6

So, Sam is 6 years old.

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500 + 120,035 - 40 times 200
FIRST ONE TO ANSWER IT CORRECTLY GETS BRAINLIEST!!!!!!!!!!!!!
NO LINKS PLEASE!!!!!!!!!!!!!

Answers

Answer:

24099000

Step-by-step explanation:

Give the coordinates of D (-2, -4) after a 270 degrees counterclockwise rotation about the origin followed by a reflection across the x-axis

Answers

Transformation involves changing the position of a point.

The image of D after the transformation is (-4,-2)

The point is given as:

[tex]\mathbf{D = (-2,-4)}[/tex]

The rule of 270 degrees counterclockwise rotation is:

[tex]\mathbf{(x,y) \to (y,-x)}[/tex]

So, we have:

[tex]\mathbf{D' = (-4,2)}[/tex]

The rule of reflection across the x-axis is:

[tex]\mathbf{(x,y) \to (x,-y)}[/tex]

So, we have:

[tex]\mathbf{D" = (-4,-2)}[/tex]

Hence, the image of D after the transformation is (-4,-2)

Read more about transformation at:

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Find the measure of the angle formed between the base of the cone and a line segment that represents the slant height

Answers

Answer:90° right angle

Step-by-step explanation: 90° right angle is formed between the base and slant height of cone.

Neal prepared 3 meals each day. He prepared 27 meals in all. What equation represents the number of days
Neal prepared meals?
( 27 x3 = n
3x n = 27
n = 27 = 3
3=n=27

Answers

Answer:

3xn=27

Step-by-step explanation:

n=days

3 per day

per=multiply

3xday

3 x n

27 total so

3 x n=27

Answer:

3x n=27

Step-by-step explanation:

This is a multiplication problem involving a total of 27, which only applies to option 2.

Option 1 does not =27, option 3 and 4 are not multiplying

May I please receive help

Answers

Answer:

1, 2, 1

Step-by-step explanation:

number 19. ...........​

Answers

The answer would be 5z^3

Help plssssssssssss

Answers

Answer:

A) 4

B) 6

C) 3

Step-by-step explanation:

Answer:

A equals 4, B equals 6, and C equals 3


a) Work out the value of 19 + 7 divided by 2-5

Answers

Answer: -8.66666666667

Step-by-step explanation: Do it step by step. So 19+7= 26

Then 2-5= 3

So 26 divided by -3 = -8.66666666667

Solve for a. 50 - a/11 = 58

Answers

Answer:

a = -88

Step-by-step explanation:

50−  a/ 11  =58

50 + -1/11 x a = 58

-1/11 x a + 50 = 58

Subtract 50 from both sides

-1/11 x a - 50 (-50) = 58 (-50)

Now multiply both sides by 11/-1

(11/-1) x (-1/11 x a) = (11/-1) x 8

a = -88

Suppose a line graphed on a coordinate plane represents the distance traveled in miles by an automobile as a function of time in hours. Assuming that the Nationship between time and distance traveled is proportional, which of these statements is correct? Select one that applies

A. If the automobile was going 25 mph, the slope of the line is -1/25

B.If the automobile was going 30 mph, the slope of the line is 1/30

C.If the automobile was going 35 mph, the y-intercept of the line is 35.
D. If the automobile was going 40 mph, the y-intercept of the line is -1/40

E.If the automobile was going 45 mph, the y-intercept of the line is 1/45

F.If the automobile was going 50 mph, the slope of the line is 50.

Answers

The answer to the question which of these statements is correct is F. If the automobile was going 50 mph, the slope of the line is 50.

Since distance traveled in miles is graphed as a function of time in hours, this implies that distance is on the y-axis and time in hours is on the x-axis.

So, the slope of the graph is distance/time and its unit is miles/hour = miles per hour = mph.

This slope represents the speed of the automobile.

So an automobile going at 50 mph represent the slope of the line which is 50.

The answer to the question which of these statements is correct is F. If the automobile was going 50 mph, the slope of the line is 50.

Learn more about slope of a line here:

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Answer:

f

Step-by-step explanation:

guys pls help me!!!!!!

Answers

Answer:

120 degrees

Step-by-step explanation:

it is literally the same as the other side

find the measure of QP

PLEASE SHOW WORK​

Answers

the measurement of QP=8 CM

Jada has a job with the city’s Parks and Recreation Department. She receives an hourly wage plus time and a half for any hours over 40 worked each week.


Which piecewise-defined function best models her weekly pay h(t) if she works t hours and receives an hourly wage of $12?

(answer choices attached)

Answers

As per the problem statement, there is a linear relation,  between de whole earnings of Jada,  and her working time.

Solution:

y = 240 + 6×t

A Linear relation  is of the form:

y = ax + b

If we call total earnings´Jada "y",  and "t" the whole quantity of worked hours per week,  we get:

a fixed amount working 40 hours      12×40 = 480 $

and the quantity over 40 hours as   ( t - 40 ) × 6.

Then  y = fixed quantity + overtime

y = 480 + ( t - 40 ) × 6       reordering this expression

y = 480 + 6×t - 240

y = 240 + 6×t

Just for checking,  if this equation satisfies, the conditions of the problem

if t = 40 h    that means she did´nt do any overtime,

she earns    y = 240 + 6×(40)   ⇒  y = 480 $

if t = 50 h  meaning 10 hours of overtime, she earns:

y = 240 + (50)×6   ⇒  y = 540 $

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solve the sequence:0,5,12,23,34____​

Answers

Step-by-step explanation:

the answer is 49

I may not be correct

You have a total of 12 cards in four different colors. The probability of drawing a green card is the same as the probability of drawing a yellow card. The probability of drawing a red card is 1-4 and of drawing a blue card is 1-12. How many green cards are in the box

Answers

Answer:

4

Step-by-step explanation:

Let's start with the easiest bits.

     We know the probability of drawing a red card is 1/4, this means every four cards there is one red. So, 12/4 = 3, there are 3 red cards in the 12 card pile.

    Next, we are also given the probability of drawing a blue card us 1/12. In the same fashion, we can figure out there is 1 blue card.

Finally, we are told the probability of drawing a green card is the same as drawing a yellow card. Therefore there is the same amount of green cards as yellow.

There are 8 cards left that are green or yellow, as 12 - 1 - 3 is 8. 8/2 is 4, so there are 4 green cards in the box.

Hope this helps!

A bag contains 12 red, 15 green, 10 yellow, 25 purple, and 2 black blocks what is the theoretical probability of you pulling out a green block

Answers

Answer:

Step-by-step explanation:

12 red,9 green,8 blue,5 yellow

Total balls=34

i) probability of green ball=9/34

ii)probability of yellow ball=5/34

iii)probability of white ball=0/34=0

Answer:  1/5

Step-by-step explanation:

Add up the total number of jellybeans, 20 + 45 + 30 + 5 = 100.

Divide the number of watermelon jellybeans by the total: 20/100 and reduce the fraction to 1/5.


Please answer the question.

Answers

Answer:

hope you like my answer 4.24264

Find the emoji with a diameter of 12 cm. Draw the emoji here. Find the area and circumference of the emoji . ​

Answers

☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️☠️

the area of a parallelogram is 12x² + 38x + 20 square inches. it's base is 3x + 2 inches. find its height.​

Answers

Answer:

4x+10

Step-by-step explanation:

3x *4x=12x²,so you can know the next

Answer:

h = 4x+10

Step-by-step explanation:

a = b(h)

h = a/b

Sub:

a = 12x^2 + 38x + 20

b = 3x + 2

12x^2 + 38x + 20 = 3x + 2 * h

Rewrite:

h = 12x^2 + 38x + 20 / 3x + 2

Solve:

2(3x+2)(2x+5)  / 3x+2

2(2x+5) = 4x + 10

Find the value of x and y. SHOW YOUR WORK​

Answers

The angles across from each other equal each other.

3y + 5 = y + 75 (subtract 5 from each side)

3y = y + 70 (subtract y from each side)

2y = 70 (divide by 2)

Y = 35

Do same thing with X.

3x +7 = 5x - 35 (subtract 7 from each side)

3x = 5x - 42 (subtract 5x)

-2x = -42 (divide by -2)

X = 21

Plug in each number to make sure it equals

50 POINTS! PLEASE HELP! Graph ​x≥2​.

Answers

Answer:

see below

Step-by-step explanation:

x≥2​

There is a solid line at x =2  because of the equals sign.  It is vertical ( up and down).

x is greater than so it is shaded to the right of the line.

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