All categories

3 years ago

What is 3.7 repeating, as a mixed number

Mathematics

2 answers:

Molodets [167]3 years ago

5 0

Answer:

$3\frac{7}{9}$

Step-by-step explanation:

We can rewrite 3.7 repeating as 3.7777777.....

Let x = 3.7777777....... -------(1) [multiply 10 to both side]

10x = 37.777777...... ----------(2) [subtract equation (1) from equation(2)]

10x - x = 37.777777 - 3.7777777

9x = 34

x = $\frac{34}{9}$

= $3\frac{7}{9}$

The mixed number of 3.7 repeating is $3\frac{7}{9}$

Marianna [84]3 years ago

4 0

I believe it is 3 7/11

You might be interested in

One hundred and three twenty four thousandths

Brrunno [24]

I think it is .1324 but I need a little more details.

3 0

3 years ago

The manufacturing of a ball bearing is normally distributed with a mean diameter of 22 millimeters and a standard deviation of .

Misha Larkins [42]

Answer:

0.1507 or 15.07%.

Step-by-step explanation:

We have been given that the manufacturing of a ball bearing is normally distributed with a mean diameter of 22 millimeters and a standard deviation of .016 millimeters. To be acceptable the diameter needs to be between 21.97 and 22.03 millimeters.

First of all, we will find z-scores for data points using z-score formula.

$z=\frac{x-\mu}{\sigma}$ , where,

z = z-score,

x = Sample score,

$\mu$ = Mean,

$\sigma$ = Standard deviation.

$z=\frac{21.97-22}{0.016}$

$z=\frac{-0.03}{0.016}$

$z=-0.1875$

Let us find z-score of data point 22.03.

$z=\frac{22.03-22}{0.016}$

$z=\frac{0.03}{0.016}$

$z=0.1875$

Using probability formula $P(a$ , we will get:

$P(-0.1875$

Therefore, the probability that a randomly selected ball bearing will be acceptable is 0.1507 or 15.07%.

6 0

3 years ago

What is the value of 2 in 255.6

True [87]

Answer:

200?

Step-by-step explanation:

its kinda simple but the 2 is in the hundreds place therefore it is 200.

hope it helped ;)

6 0

3 years ago

the gasoline gauge on a van initially read 1/8 full. When 15 gallons were added to the tank, the gauge read 3/4 full. how many m

nexus9112 [7]

Let x be the capacity of the tank then
3x/4-x/8 =15,
then x=24, so so far it has 3/4 *24 =18 so you need 6 gallons to fill it up

5 0

3 years ago

The cooler at a picnic contained 4 apple juice boxes, 8 orange juice boxes, and 6 fruit punch juice boxes. A juice box is select

Mandarinka [93]

Answer:

5/9

Step-by-step explanation:

complement means not choosing an orange

P( not choosing orange) = (apple and fruit) / total

= (4+6) / (4+6+8)

=10/18

= 5/9

8 0

3 years ago