3 years ago

2 3/4 + 4 2/3 = 8 1/3 + 8 5/7 =

Mathematics

1 answer:

satela [25.4K]3 years ago

3 0

7 5/12 or 7.41
17 1/21 or 17.04

You might be interested in

A ship has a 15-foot-tall mast with a 37.13-foot-long rope that is strung from the top of the mast to the ship's deck. What is t

Alex Ar [27]

Answer:

Approximately 24 degrees

4 0

3 years ago

You cut a styrofoam ball in half for a project. Find the surface area of each half of the styrofoam ball.

uranmaximum [27]

Answer:

The question needs to state the radius of the styrofoam ball.

4 0

3 years ago

On Friday, the temperature was 82°F. The temperature changed by –2°F on Saturday, and then it changed by 5°F on Sunday. What was

postnew [5]

Answer:

the temp on Sunday was 85, it changed by going down 2 degrees, and up 5 degrees

Step-by-step explanation:

when it says -2 degrees F its basically saying subtract 2, and then go on and add 5

4 0

2 years ago

Read 2 more answers

Un answered question

ale4655 [162]

Answer:

Maksud awk apa

Mana boleh main main tulis

6 0

3 years ago

Read 2 more answers

A national manufacturer of unattached garages discovered thatthe distribution of the lengths of time it takes two constructionwo

statuscvo [17]

Answer:

D. 68.00%

Step-by-step explanation:

Population mean time (μ) = 32 hours

Standard deviation (σ) = 2 hours

Assuming a normal distribution, for any given number of hours 'X', the z-score is determined by:

$z=\frac{X-\mu}{\sigma}$

For X=30

$z=\frac{30-32}{2}\\z=-1$

For a z-score of -1, 'X' corresponds to the 15.87-th percentile of a normal distribution.

For X=34

$z=\frac{34-32}{2}\\z=1$

For a z-score of 1, 'X' corresponds to the 84.13-th percentile of a normal distribution.

The percentage of the garages that take between 30 and 34 hours to erect is:

$P(30 \leq X \leq 34) = 84.13\% - 15.87\%= 68.3\%$

The percentage is roughly 68%.

6 0

2 years ago