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
seropon [69]
2 years ago
15

6 less than 3 times a number​

Mathematics
2 answers:
Ede4ka [16]2 years ago
3 0

Answer:

As per the given question, let the number be m.

three times the number 'm ' is 3.m or 3m.

3

(

m

)

- 6 = 15.

3m -6 = 15

add 6 to both sides;

3m -6 + 6 = 15 + 6

3m = 21

dividing both the sides by 3 , we get;

3m /3 = 21 / 3

m = 7

Hope this helps

Please give me Brainliest

wlad13 [49]2 years ago
3 0
6-3x n you subtract 6 and less then 3 plus a number
You might be interested in
Seven balls are randomly withdrawn from an urn that contains 12 red, 16 blue, and 18 green balls. Find the probability that (a)
UNO [17]

Answer:

a) P=0.226

b) P=0.6

c) P=0.0008

d) P=0.74

Step-by-step explanation:

We know that the seven balls are randomly withdrawn from an urn that contains 12 red, 16 blue, and 18 green balls. Therefore, we have 46 balls.

a) We calculate the probability that are 3 red, 2 blue, and 2 green balls.

We calculate the number of possible combinations:

C_7^{46}=\frac{46!}{7!(46-7)!}=53524680

We calculate the number of favorable combinations:

C_3^{12}\cdot C_2^{16}\cdot C_2^{18}=660\cdot 120\cdot 153=12117600

Therefore, the probability is

P=\frac{12117600}{53524680}\\\\P=0.226

b) We calculate the probability that are at least 2 red balls.

We calculate the probability  withdrawn of 1 or none of the red balls.

We calculate the number of possible combinations:

C_7^{46}=\frac{46!}{7!(46-7)!}=53524680

We calculate the number of favorable combinations: for 1 red balls

C_1^{12}\cdot C_7^{34}=12\cdot 1344904=16138848

Therefore, the probability is

P_1=\frac{16138848}{53524680}\\\\P_1=0.3

We calculate the number of favorable combinations: for none red balls

C_7^{34}=5379616

Therefore, the probability is

P_0=\frac{5379616}{53524680}\\\\P_0=0.1

Therefore, the  the probability that are at least 2 red balls is

P=1-P_1-P_0\\\\P=1-0.3-0.1\\\\P=0.6

c) We calculate the probability that are all withdrawn balls are the same color.

We calculate the number of possible combinations:

C_7^{46}=\frac{46!}{7!(46-7)!}=53524680

We calculate the number of favorable combinations:

C_7^{12}+C_7^{16}+C_7^{18}=792+11440+31824=44056

Therefore, the probability is

P=\frac{44056}{53524680}\\\\P=0.0008

d) We calculate the probability that are either exactly 3 red balls or exactly 3 blue balls are withdrawn.

Let X, event that exactly 3 red balls selected.

P(X)=\frac{C_3^{12}\cdot C_4^{34}}{53524680}=0.57\\

Let Y, event that exactly 3 blue balls selected.

P(Y)=\frac{C_3^{16}\cdot C_4^{30}}{53524680}=0.29\\

We have

P(X\cap Y)=\frac{18\cdot C_3^{12} C_3^{16}}{53524680}=0.12

Therefore, we get

P(X\cup Y)=P(X)+P(Y)-P(X\cap Y)\\\\P(X\cup Y)=0.57+0.29-0.12\\\\P(X\cup Y)=0.74

8 0
3 years ago
Select the number line that represents the opposite of the opposite of 7.
damaskus [11]

Answer: D

Step-by-step explanation: i took a course on this

4 0
1 year ago
My teacher doesn’t really teach, so I don’t understand ANYTHING, so just need some help figuring out he answer !
kozerog [31]

Set it up as 15x-13+8x+29+2y=180 and then just find a algebra calculator and put that formula in there

6 0
3 years ago
Read 2 more answers
How many solutions can be found for the linear equation? 3(x + 4) = 3x + 4
jok3333 [9.3K]
There would be infinite answers
4 0
2 years ago
Read 2 more answers
What’s the speed limit in kph for a speed limit of 20 miles per hour if 100 kilometers per hour is 62 miles per hour
Komok [63]

Answer:

47mph and 32kph the ratio is 1.6kph for every 1 so divide by 1.6 and the second you multiply

Step-by-step explanation:


4 0
2 years ago
Other questions:
  • What is E = MC squared
    10·1 answer
  • Geometry
    14·1 answer
  • 95 times 4 is equal to what kind of number
    5·2 answers
  • The diameter of a coin is 22 millimeters
    5·1 answer
  • Glenn bought 3 pounds of tomatoes. He used bles of them to make sauce. Make an equation that shows the number of pounds of tomat
    11·1 answer
  • How many lines of symmetry does the figure below appear to have
    15·1 answer
  • 9. Find the length of X (in the picture) plssss I need help. (GIVING POINT'S AND BRAINLY)​
    6·1 answer
  • Check the month and dollar value that represent a correct ordered pair.
    9·1 answer
  • Someone plz help me plz
    5·2 answers
  • T^(5)-10t+1=0 find the answer (≈)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!