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
arsen [322]
3 years ago
10

Sa se gaseasca numerele a si b a caror medie aritmetica este 200 si care sunt invers proportionale cu 8 si respectiv 4,5.

Mathematics
1 answer:
Olenka [21]3 years ago
3 0
Bonjour, (as you write in roumain)

Soient a et b les 2 nombres

(a+b)/2=200==>a+b=400

8/a=4.5/b==>16b=9a

a+9a/16=400
==> 25a/16=400
==>a=400*16/25
==>a=256
et b= 9*256/16; b=144

You might be interested in
A rectangle has an area of 0.24 of a square. What are some possibility for the length and width of the rectangle? Tell why
VLD [36.1K]

Answer:

<h3>The possibilities of length and width of the rectangle are </h3><h3>x=1, y=0.24;</h3><h3>x=0.5, y=0.48;</h3><h3>x=0.25, y=0.96;</h3><h3>x=2, y=0.12</h3>

Step-by-step explanation:

Given that the area is 0.24 square meter

The area of a rectangle is given by

Area=length\times width square units

Let x be the length and y be the width.

Since the area is 0.24 square meter, we have the equation:

Area=x\times y = 0.24, with x and y measures in meters

If we want to know some possibilities of x and y, we can assume a value for one of them, and then calculate the other one using the equation.

Now choosing some values for "x", we have:

Put x = 1

1\times y = 0.24

∴ y = 0.24

Now put x = 0.5 we get

0.5\times y = 0.24

∴ y = 0.48

Put  x = 0.25

0.25\times y = 0.24

∴ y = 0.96

Put x = 2

2\times y = 0.24

∴ y = 0.12

8 0
3 years ago
Read 2 more answers
What is -2 22/25 as a decimal?
adelina 88 [10]

Answer:

-2 22/25 = -72/25

= -2.88

8 0
3 years ago
Read 2 more answers
Write the ratio in simplest form: 27 red markers to 12 blue markers
elena-14-01-66 [18.8K]
What do you mean by this? Do you have a picture
6 0
3 years ago
The radius of a circle measures 5 ft. What is the circumference?
polet [3.4K]

Answer:C≈31.42ft

<h2><em>I'm looking for friends!!!!</em></h2>

3 0
3 years ago
Read 2 more answers
Line symmetry exists as the result of which kind of a transformation
LiRa [457]
I believe the answer is reflexive
3 0
3 years ago
Other questions:
  • Consider the dot plot which shows the distribution of data collected on the amount of time Marty spends playing video games each
    15·1 answer
  • What are the steps to get 4 - 2i?
    10·1 answer
  • ???whats the answers
    15·1 answer
  • Find the mean of the<br> set of numbers:<br> 15, 13, 12, 12, 20
    5·2 answers
  • Which graph best represents the solution to the following pair of equations? (1 point) y = −x − 5 y = 2x + 4
    13·1 answer
  • What is formed when two complementary angles share one ray?
    11·1 answer
  • Which graph is a function, and explain how you knew whether each graph was a function or not.
    8·1 answer
  • Which graph represents the solution set of this inequality?
    9·1 answer
  • 11) It's perimeter
    13·1 answer
  • 50 points , please be honest
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!