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
mariarad [96]
2 years ago
15

What is 12/13 in simplest form

Mathematics
2 answers:
sukhopar [10]2 years ago
7 0
12/13 can't be simplified any further.
JulsSmile [24]2 years ago
4 0
It is already simplified
You might be interested in
Suppose the speeds of cars along a stretch of I-40 is normally distributed with a mean of 70 mph and standard deviation of 5 mph
neonofarm [45]

Answer:

a) 68%.

b) 84%.

c) Approximately 2.5% of cars are traveling at a speed greater than or equal to 80 mph.

d) Approximately 2.5% of cars are traveling at a speed greater than or equal to 80 mph.

e) Between 60 mph and 80 mph.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

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

Approximately 95% of the measures are within 2 standard deviations of the mean.

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

In this problem, we have that:

Mean of 70 mph, standard deviation of 5 mph.

(a) Approximately what percent of cars are travelling between 65 and 75 mph?

70 - 5 = 65

70 + 5 = 75

Within 1 standard deviation, so approximately 68%.

(b) If the speed limit on this stretch of highway is 65 mph, approximately what percent of cars are traveling faster than the speed limit?

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

65 is one standard deviation below the mean, so of the cars below the mean, 68% are above 65 mph.

0.68*50% + 50% = 34% + 50% = 84%.

84%.

(c) What percent of cars are traveling at a speed greater than or equal to 80 mph?

80 = 70 + 2*10

2 standard deviations above the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean. Due to the symmetry of the normal distribution, of the other 5%, 2.5% is at least 2 standard deviations below the mean and 2.5% is at least 2 standard deviations above the mean. Then:

Approximately 2.5% of cars are traveling at a speed greater than or equal to 80 mph.

(d) What percent of cars are traveling at a speed greater than 80 mph?

Same as item c, as in the normal distribution, the probability of an exact value is considered to be 0.

(e) 95% of cars are traveling between what two speeds?

Within two standard deviations of the mean.

70 - 2*5 = 60 mph

70 + 2*5 = 80 mph.

Between 60 mph and 80 mph.

6 0
2 years ago
Rina Boutique advertises a discount of $ 54.72 on sandals. If the discount is 33.5 %,
Scrat [10]
About $73.05 or $73; multiply .335 with $54.72 then add that answer to $54.72
4 0
2 years ago
Can u help me answer this? A tree is 8.5 feet tall. It grows 0.75 feet each year.
alexandr1967 [171]

Hmm... 8.5 + 0.75y

          0.75y + 8.5

         

5 0
2 years ago
Mr. Simpson feeds his dog
Liono4ka [1.6K]

Answer:

The total of 4 cups lasts 8 days  to Mr. Simpson.

Step-by-step explanation:

The 1/2 cups of food lasts 1 day

⇒ 1 cup of food lasts = (\frac{1}{\frac{1}{2} })   = 2 days.

Now, Mr. Simpson has 4 cups.

So, 4 cups last him = 4 x 2 days   =  8 days

Hence, a total of 4 cups lasts 8 days to Mr. Simpson.

7 0
2 years ago
What is a square root and what does it do?
WINSTONCH [101]

Answer:

Hey

Definition:-

A square root is a number which produces a specific quantity when multiplied by itself.

Example:-

Suppose the area of a square of side 6 cm is given by 6 × 6 = 36 cm².

Therefore 36 is said to be the square of 6. We write 6² = 36 and we read the ‘the square root of 6 is 36' or simply ‘6 squared is 36.'

hope this helps

4 0
2 years ago
Other questions:
  • Write an equation in standard form for the line that passes through the point (2,-3) and is perpendicular to the line y + 4 = -2
    11·1 answer
  • The value of V is double the value of Q.
    9·1 answer
  • Help on my math hw and estimating percants
    10·2 answers
  • 7 out of 100 employable Canadian people are unemployed. If there is 32000000 people in Canada how many people are jobless
    6·1 answer
  • Solve for 8y - 3 = 6y + 17 equation show work step by step
    11·2 answers
  • After getting 10 haircuts at Cut and Run, the customer receives 2 free haircuts. At $8.00 a cut, what is the average cost of the
    5·2 answers
  • What is the zero of r(x)<br> =<br> 8/3X-16
    6·1 answer
  • Please answer and help me on this question!​
    9·1 answer
  • Help this may be the last time
    11·1 answer
  • What is the answer to this question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!