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
IRINA_888 [86]
3 years ago
11

Solve the equation for X and show your work. 3x= 15

Mathematics
2 answers:
dem82 [27]3 years ago
5 0
X=5

divide both sides by 3

3/3
15/3

5
Aleksandr-060686 [28]3 years ago
3 0

Answer:

5

Step-by-step explanation:

15/3=5

You might be interested in
I need the answer hurry please
denis23 [38]
For all of the questions or only one-?
3 0
2 years ago
Gary is 3 years older than twice the age of His sister Elena which shows an equation for this situation
Lynna [10]

Answer: G = 2E + 3

<u>Step-by-step explanation:</u>

Let E represent Elena's age.

Then Gary(G) is two times Elena(E) plus 3 --> G = 2E + 3

8 0
3 years ago
Write the equation of the line passing through the points (-4, 5) and (4, 1).
oksian1 [2.3K]

9514 1404 393

Answer:

  y = -1/2x + 3

Step-by-step explanation:

It can work to start with the 2-point form of the equation for a line.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (1 -5)/(4 -(-4))(x -(-4)) +5 . . . . . fill in point values

  y = -4/8(x +4) +5 . . . . . . . . simplify a bit

  y = -1/2x -2 +5 . . . . . .eliminate parentheses

  y = -1/2x +3 . . . . collect terms

5 0
3 years ago
Avoiding an accident while driving can depend on reaction time. Suppose that reaction time, measured from the time the driver fi
Nadya [2.5K]

Answer:

2.5% of drivers have a reaction time more than 2.14 seconds

16% of drivers have a reaction time less than 1.78 seconds

84% of drivers have a reaction time less than 2.02 seconds

Step-by-step explanation:

The Empirical Rule(68-95-99.7 rule) states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviation of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% are above.

In this problem, we have that:

Mean = 1.9s

Standard deviation = 0.12

What percentage of drivers have a reaction time more than 2.14 seconds?

2.14 = 1.9 + 2*0.12

So 2.14 is two standard deviations above the mean.

Of the 50% of the measures above the mean, 95% are within 2 standard deviations of the mean, so, below 2.14. The other 5% is above.

0.05*0.5 = 0.025

2.5% of drivers have a reaction time more than 2.14 seconds

What percentage of drivers have a reaction time less than 1.78 seconds?

1.78 = 1.9 - 0.12

So 1.78 is one standard deviation below the mean.

Of the 50% of the measures that are below the mean, 68% are within one standard deviation of the mean, that is, greater than 1.78.

100 - 68 = 32

0.32*50 = 0.16

16% of drivers have a reaction time less than 1.78 seconds

What percentage of drivers have a reaction time less than 2.02 seconds?

2.02 = 1.9 + 0.12

So 2.02 is one standard deviation above the mean.

Of the measures that are below the mean, all are below 2.02.

Of those that are above, 68% are below 2.02.

0.5 + 0.68*0.5 = 0.84

84% of drivers have a reaction time less than 2.02 seconds

5 0
3 years ago
Round 62.276 to the nearest hundredth
AnnZ [28]

Answer:

62.28

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Someone help meeee lollll
    12·1 answer
  • Mandy is trying to subtract 4 - 12, and she has asked you for help. How would you explain the process of solving the problem to
    6·2 answers
  • Geometry Question.Find the circumference
    9·1 answer
  • NEED HELP-20pts- MUST SHOW STEPS AND HOW YOU DID IT
    9·1 answer
  • An electronics store makes a profit of $69 for every standard DVD player sold and $85 for every portable DVD player sold. The ma
    6·1 answer
  • Help with math please !
    11·2 answers
  • G(x)=26*((1)/(2))^(x)
    11·1 answer
  • Find The Value Of g<br> -6g+36=12
    11·1 answer
  • What is the value x in 8+6y=9
    14·1 answer
  • HELP!!!!! PLEASE!!!!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!