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
malfutka [58]
3 years ago
9

numerele a, b si c sunt direct proportionale cu 2, 3 si 5. Daca media aritmetica a celor trei numere este egala cu 100, determin

ati numerele a, b si c
Mathematics
1 answer:
Fynjy0 [20]3 years ago
3 0

Answer:

a = 60

b = 90

c = 150

Step-by-step explanation:

Numerele a, b și c sunt direct proporționale cu 2, 3 și 5.

Unde k este constantă de proporționalitate

a ∝ 2

a = 2k

b ∝ 3

b = 3k

c ∝ 5

c = 5k

Dacă media aritmetică a celor trei numere este egală cu 100, determinați numerele a, b și c

= 2k + 3k + 5k / 3 = 100

= 10k / 3 = 100

Cross Multiply

= 10k = 3 × 100

= 10k = 300

Împărțiți ambele părți la 10

k = 300/10

k = 30

Pentru numărul a

a = 2k

a = 2 × 30

a = 60

Pentru numărul b

b = 3k

b = 3 × 30

b = 90

Pentru numărul c

c = 5k

c = 5 × 30

c = 150

Prin urmare, a = 60, b = 90, c = 150

You might be interested in
Help me Here take this<br> I
lora16 [44]

Answer:

yesssssssssssssssssssssssss

4 0
3 years ago
A baker uses 1/2 cup of sugar to make 7/8 of a batch of brownies. How many
Verizon [17]

Answer:

5/8 of a cup

Step-by-step explanation:

8 0
2 years ago
Can someone help me?
Lapatulllka [165]

Answer:

idk

Step-by-step explanation:

we are nt on that yet

5 0
3 years ago
Who is the Best scientist in 1993​
BabaBlast [244]
Michael smith and Kary B. Mullís
8 0
3 years ago
Simplify -19 – 1 + (–24)
IrinaK [193]
First subtract -19 - 1 = -20

Next, + (-24) is the same as just simply subtracting 24

-20 - 24

Subtract that and you get -44
3 0
3 years ago
Read 2 more answers
Other questions:
  • Suppose a merry-go-round is spinning once every 3 seconds. If a point on the outside edge has a speed of 12.56 feet per second,
    13·1 answer
  • Write an expression using the distributive property to find the product of 7×63
    7·1 answer
  • Which of the following are equal to x
    11·1 answer
  • The axis in the coordinate plane, which runs horizontally, is the _ _ _ _ _ _ axis.
    8·2 answers
  • How can you find 4 x 754 using two different methods
    14·1 answer
  • PLease help! u can make it short i'm in a rush. please help me
    15·1 answer
  • I’m almost done with this
    5·2 answers
  • If x, y, and z are positive integers and 2^x * 3^y * 5^z = 54,000, what is the value of x + y + z
    9·1 answer
  • 7:5 is equivalent to...?​
    9·1 answer
  • A long-term period of economic recession that leads to a low GDP and very high unemployment is a(n)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!