1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tanzania [10]
2 years ago
11

Two numbers are in the ratio 3/4. If 4 is subtracted from each they are in the ratio of 5/7. Find the numbers!

Mathematics
1 answer:
frosja888 [35]2 years ago
3 0

Answer:

The two numbers are 24 and 32

Step-by-step explanation:

We can use the variable x

3x : 4x, would be a ratio of 3/4

now subtract 4 from both

3x - 4 : 4x - 4 = 5/7

3x-4 / 4x-4 = 5/7

cross multiplication

7(3x - 4) = 5(4x - 4)

21x - 28 = 20x - 20

x = 8

Two numbers are;

3x, 4x

3(8), 4(8)

24, 32

24/32 = 3/4

20/28 = 5/7

You might be interested in
A treasure map says that a treasure is buried so that it partitions the distance between a rock and a tree in a 5:9 ratio. Marin
RideAnS [48]

The correct answer is option B i.e. (7.6, 8.8)

<h3>What is Distance?</h3>

The length along a line or line segment between two points on the line or line segment.

Let the coordinates of the treasure be (x, y).

Let  d₁ =  distance from the rock to the treasure.

Let  d₂ =  distance from the tree to the treasure.

    d₁ = \sqrt{x^2 + (y-2)^2}

    d₂ = \sqrt{(16-x)^2 + (21-y)^2}

We want d₁/d₂ = 5/9 in order to locate the treasure.

Note that 5/9 = 0.556 (approx)

Test (11.4, 14.2)

d₁ = 14.8, d₂ = 8.2, d₁/d₂ = 1.8           Incorrect

Test (7.6, 8.8)

d₁ = 8.2,  d₂ = 14.8,  d₁/d₂ = 0.554    Correct

Test (5.7, 7.5)

d₁ = 6.13,  d₂ = 16.98, d₁/d₂ = 0.36   Incorrect

Test (10.2, 12.6)

d₁ = 12.8,  d₂ = 10.2, d₁/d₂ = 1.255   Incorrect

Thus, The correct answer is option B i.e.  (7.6, 8.8).

Learn more about Distance from:

brainly.com/question/15172156

#SPJ1

4 0
2 years ago
A 15 foot flagpole casts an 11 foot shadow. At the exact same time a 28 foot tree casts a shadow. Which proportion would correct
marishachu [46]
The longer an object, the longer the shadow they cast at a given time of the day and vice versa. This is called direct proportionality. At the same time,

If 15 foot flagpole ---- casts 11 foot shandow
    28 foot tree -------- casts ?? foot shadow

The proportion would therefore be:

Length of shadow cast by tree = (28/15)*11 = 20.533 foot.
8 0
3 years ago
29<br> 6. Calculate the hourly rate of a person who works 40<br> hours for a wage of $387.20.
Vikentia [17]

Answer:

$ 9.68

Step-by-step explanation:

a person who earns $387.20. in 40 earns will earn $9.68 in one hour

4 0
4 years ago
Read 2 more answers
When you multiply two complex numbers in polar form, what happens to the angles?
prisoha [69]

The angles get added.

Let <em>z</em> = <em>r</em> exp(<em>i</em> <em>θ</em>) and <em>w</em> = <em>s</em> exp(<em>i</em> <em>φ</em>). Then

<em>zw</em> = <em>rs</em> exp(<em>i</em> <em>θ</em>) exp(<em>i</em> <em>φ</em>) = <em>rs</em> exp(<em>i</em> (<em>θ</em> + <em>φ</em>))

6 0
3 years ago
While playing mini golf, you hit the ball off of a wall to attempt at making it in the hole. The ball is located at (5,4) and th
netineya [11]
H=9;8)B=(5;4) (ball)R=(7;0) (hit point)B'=symetric of B axis perpendicular of x in RB'=(7+(7-5);4)=(9;4)Equation BR: y-4=(0-4)/(7-5)(x-5)==>y=-2x+14Equation RB': y-4=(4-0)/(9-7)(x-9)==>y=2x-14
Is H a point of RB'? y=2x-14 : 8=? 2*9-14==>8=?4 
no, you will not make your putt.

I hope this helps you and have a great day!! :)

6 0
3 years ago
Other questions:
  • 2 angles of a triangle are the same size. the 3rd is 3 times as large as the 1st​
    11·1 answer
  • Find the polynomial function with the following roots,
    13·1 answer
  • At how many points does the graph of the function below intersect the x-
    8·2 answers
  • A town in east Texas received 10 inches of rain in two weeks. If it kept raining at this rate for a 31-day month, how much rain
    10·1 answer
  • Qual é a raiz quadrada de 84
    15·1 answer
  • The table below represents how much money Jaycee earns babysitting.
    14·1 answer
  • Please help!!!!!!!!!!!! !!!
    13·1 answer
  • Help please again lol
    15·1 answer
  • Find the even numbers between X &gt; 50​
    12·1 answer
  • Find a polynomial of least possible degree having the graph shown<br><br> f(x)=0
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!