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
Viktor [21]
3 years ago
15

In the number 439 how is the value of three related to the value of nine

Mathematics
1 answer:
ratelena [41]3 years ago
6 0

The 3 is in the tens place, meaning the value of the 3 is 3x10.

The 9 is in the ones place, meaning the value of the 9 is 9x1

So the place value of the 3 is ten times the value of the place value of the 9.

You might be interested in
A rancher wants to fence in an area of 1000000 square feet in a rectangular field and then divide it in half with a fence down t
frosja888 [35]

The shortest length of the fence used by the rancher in a rectangular field of 1000000 square feet is 4899 ft.

<h3>What is the area of a rectangle?</h3>

The area of a rectangle is a region enclosed in four corners where two opposite sides are equal. The area of the rectangle is mathematically expressed as:

Area of a rectangle = length(x) × breath(y)

1000000 sq.ft = (x) × (y) ---- (1)

However, to determine the fencing, we have:

Length of fencing = 2x + 2y  

  • since the rectangle has four sides and opposite sides are equal

Suppose we use the x-direction to estimate the region where the fencing is located, we have:

Length of fencing = 2x + 2y + x

Length of fencing = 3x + 2y ---- (2)

From equation (1), make (y) the subject of the formula and replace the value of y with equation (2)

The Length of fencing is:

\mathbf{L = 3x - 2( \dfrac{1000000}{x})}

\mathbf{\dfrac{dL}{dx} = 3 - \dfrac{2000000}{x^2} = 0}

\mathbf{ x^2= \dfrac{2000000}{3} }

\mathbf{ x= \dfrac{1000\sqrt{2}}{\sqrt{3}} }

\mathbf{x = \dfrac{1000 \sqrt{6}}{3}}

Now, if we replace the value with equation (1), then y will be:

\mathbf{y = \dfrac{1000000}{\dfrac{1000 \sqrt{6}}{3}} }\\ \\  \\ \\ \mathbf{y = \dfrac{3000 }{\sqrt{6}}}

\mathbf{x =500\sqrt{6}}

Now, the shortest length of the fencing can be computed by using the equation (2):

L = 3x + 2y

\mathbf{L = 3( \dfrac{1000  \sqrt{6}}{3}) + 2(500 \sqrt{6})}

\mathbf{L =1000  \sqrt{6} + 1000 \sqrt{6}}

\mathbf{L =2000  \sqrt{6} }

\mathbf{L \simeq 4899 \ ft}

Learn more about the area of a rectangle here:

brainly.com/question/25292087

6 0
2 years ago
How much will it cost to pump 38 liters of fuel into the tank?
Dmitriy789 [7]

Answer:

one litre cost how much

6 0
3 years ago
Which of the following must be true?
Naddika [18.5K]

Answer:

B, it's the only plausible one. A is wrong because the value would be above 180°

5 0
4 years ago
Read 2 more answers
What is a common mistake for finding slope from 2 points
azamat

Answer:

A common mistake is doing x2-x1/y2-y1 instead of the correct slope formula which is y2-y1/x2-x1

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Need help on this I didn’t study for this test I bet it’s easy but I didn’t study can someone help me on it.
FinnZ [79.3K]
15 x number of people + 25=total cost
So for 20 people the equation would be 15 x 20 +25=325
Just put the number of people in the middle of the equation and calculate
5 0
3 years ago
Other questions:
  • Phoebe runs at 12km/h and walks at 5km/h. One afternoon she ran and walked a total of 17km. If she ran for the same length of ti
    15·1 answer
  • The prime factorization of 25 is .
    12·1 answer
  • X<br> Which of the angle pairs can be classified as vertical angles?
    8·2 answers
  • In triangle abc, m of acb = 90, cd is perpendicular to ab , m of acd is 60. and bd is 5 cm. find ad
    10·1 answer
  • What is the ratio for sin Y if tan Y = 8/15?
    14·1 answer
  • Which is the graph of y=-x-3?
    8·1 answer
  • What is the equation of a line perpendicular to the line given by y = (3/7)x+ 9
    11·1 answer
  • What is the value of x in the equation -2/3 x + 9 = 4/3 x - 3?​
    11·2 answers
  • Find the missing angle measure<br>​
    10·2 answers
  • What is the quotient of (x3 3x2 5x 3) Ă· (x 1)? x2 4x 9 x2 2x x2 2x 3 x2 3x 8.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!