All categories

3 years ago

What is 3 1/6 + 8 2/4 - 1 1/2

Mathematics

2 answers:

iragen [17]3 years ago

4 0

Answer:

9 8/9

Step-by-step explanation:

vivado [14]3 years ago

4 0

Answer:

10 1/6 is your answer

Step-by-step explanation:

3 1/6 + 8 2/4 - 1 1/2

19/6+34/4-3/2

61/6

10 1/6

You might be interested in

Identify all the sets to which the number belongs. Choose from Rational Number, Irrational number, whole number, and integer. 1.

Allushta [10]

Answer:

The number 1.256 is A)rational number.

Step-by-step explanation:

A whole number is a non-negative number without any digits behind the decimal.

An integer is a set of negative and non negative numbers that don't have any digits behind the decimal.

A number that can be shown as a fraction of two whole numbers is a rational number.And the numbers that are not rational are irrational numbers.

Here, 1.256 is a fraction of whole numbers 1256 and 1000 , so it is a rational no.

$\frac{1256}{1000} =1.256$

But since it has digits behind the decimal it is neither a whole number, or an integer.

4 0

2 years ago

2 + 5.8 = 6 why is this incorrect

Tanzania [10]

This is incorrect because 2 + 5.8 = 7.8. And 7.8 does not equal 6. 2 + 4 = 6 is the correct answer. This could be represented by this:

2 + x = 6.

Subtract two from both sides to get:

x = 4.

When substituted back into the equation:

2 + (4) = 6.

3 0

2 years ago

Read 2 more answers

2. To estimate the mean age for a population of 4000 employees, a simple random sample of 40 employees is selected. a. Would you

ANEK [815]

Answer:

Step-by-step explanation:

Size of the population, N = 4000

Size of the sample, n = 40

n/N = 40/4000 = 0.01

0.01 is less than 0.05 and hence we would not us the finite population correction factor in calculating the standard error of the mean.

Population standard deviation is σ = 8.2

So, the standard error of x’ using the finite population correction factor is give by

σ(x’) = √[(N - n)/(N - 1)] x (sigma/√n)

σ(x’) = √[(4000 - 40)/(4000 - 1)] x (8.2/√40)

σ(x’) = 1.29

Standard error of x’ without using the finite population correction factor is

σ(x’) = σ/√n

σ(x’) = 8.2/√40 = 1.2965

There is little difference between the two values of the standard error. So we can ignore the population correction factor.

Let the population mean be μ

Probability that the sample mean will be within =-2 of the population mean is

P(μ– 2 < x’ < μ + 2)

At x’ = μ – 2 , we have

z = (μ – 2 – μ)/1.2965

z = -1.54

at x’ = μ + 2, we have

z = (μ + 2 – μ)/1.2965

z = 1.54

So the required probability is

P(μ – 2 < x’ < μ + 2) = p(-1.54< z < 1.54)

P(μ – 2 < x’ < μ + 2) = p(z < 1.54) – p(z < -1.54)

P(μ – 2 < x’ < μ + 2) = 0.9382 – 0.0618

P(μ – 2 < x’ < μ + 2) = 0.8764

7 0

3 years ago

A marble is drawn at random from a bag containing 2 blue marbles, 3 yellow marbles, and 7 orange marbles. What is the probabilit

elixir [45]

total marbles: 2+3+7 = 12

add blue and yellow 2+3=5

7 marbles aren't blue or yellow

probability = 7/12 marble is not one of those

4 0

3 years ago

Mrs Adams baked some muffins. Carl eat 2/5 of the muffins and John eat 25. How many muffins were baked?

Dennis_Churaev [7]

Answer:

Well, how many were left over? Mrs. Adams has a muffin factory and made 1 million muffins. Carl ate 2/5 or 40% or 400,000 muffins, and John ate 25. 599,975 muffins were shipped for sale. That meets the stated requirements.

Hence, we have to guess there were supposed to be no muffins left over.

In that case, Mrs. Adams baked 125/3 muffins, Carl ate 2/5 of them = 50/3, leaving 75/3 = 25 for John.

Step-by-step explanation:

x muffins baked, 2/5 eaten by Carl, 3/5 left to be eaten by John, who ate 25 before running out.

3/5 x = 25

x = 25 × 5/3 = 125/3 = 41 + 2/3

Or, Start with x muffins. Carl ate 2/5 x, leaving 3/5 x. John ate 25 with zero left over. So 3/5 x = 25.

(x - 2/5 x) - 25 = 0

3/5 x = 25

x = (5/3) × 25 = 125/3.

8 0

2 years ago

What is 3 1/6 + 8 2/4 - 1 1/2​

What is 3 1/6 + 8 2/4 - 1 1/2