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3 years ago

Helppp pls ASAP first correct answer gets brainleist

Mathematics

2 answers:

eimsori [14]3 years ago

8 0

$\tt \dfrac{3}{8}\times 28.7=10.7625=10.76~kg$

noname [10]3 years ago

3 0

Answer: his luggage weighs 0.375

Step-by-step explanation: if this helped pls give brainliest!

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A sales completion team, aiming to reduce the shipment time of urgent orders, studies the current process and finds that the cur

4vir4ik [10]

Answer:

$P(1$

And we can find this probability with thi difference:

$P(-2$

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.

$P(-2$

So then we expect about 72.5% of the current shipment times between 1 and 5 days

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the current shipment time of a population, and for this case we know the distribution for X is given by:

$X \sim N(4,1.5)$

Where $\mu=4$ and $\sigma=1.5$

We are interested on this probability

$P(1$

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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

If we apply this formula to our probability we got this:

$P(1$

And we can find this probability with thi difference:

$P(-2$

And in order to find these probabilities we can use tables for the normal standard distribution, excel or a calculator.

$P(-2$

So then we expect about 72.5% of the current shipment times between 1 and 5 days

8 0

3 years ago

Two boxes have the same volume. Box 1 has dimensions of 8 ft. by 4 ft. by 3 ft. Box 2 has dimensions of 12 ft. by 4ft by 2 ft. T

hram777 [196]

You would have to find the surface areas of each box, which would be 8*4 *2, 8*3 *2, and 4*3 *2. That *3, would be the cost, and then surface area of 2 would be 12*4 *2, 12*2 *2, and 2*4 *2. That *3 would again be the cost to make the box. That all would be A=64 + 48 + 24, or 136*3 = $408 to make box A, and box B=96 + 48 + 16 = 160*3 = $480 to make box B. Therefore, box B, or $480 - $408 = $72 more.

3 0

3 years ago

Problem Solving

Semenov [28]

Answer:

12:30PM

Step-by-step explanation:

Known information:

There are 4 classes.

Each class is 1 hour.

There are 10 minutes between classes, like a break.

Draw a diagram:

start-CLASS1, break, CLASS2, break, CLASS3, break, CLASS4-end

There are 3 breaks because there are no breaks before and after the first and last classes.

Multiply the number of classes by the time length for class.

Multiply the number of breaks by the time length for breaks.

Add the two numbers together to get the total school time:

Classes: 4*1h = 4h

Breaks: 3*10min = 30min

4h + 30min = 4h 30min

Calculate 4h and 30min after 8:00 AM.

Add 4 hours and 30 minutes to 8.

. 8:00

+ 4:30

. 12:30

In the AM/PM clock (not 24 hour clock) there are 12 hours. After 12:59, it becomes 1:00, not 13:00.

Since "12:30" is possible on the AM/PM, we do not need to fix it.

The AM/PM clock changes at 12:00.

This means that after 11:59PM it becomes 12:00AM.

After 11:59AM it becomes 12:00PM. (Usually lunch)

Since 12:30 passed 11:59, the AM/PM sign changes.

The fourth class ends at 12:30PM.

3 0

3 years ago

List the terms in the expression 13u2+14u+8

aleksley [76]

Answer:

do you mean likely terms, or.....

terms by themselves: 13u2, 14u, 8

4 0

3 years ago

U-haul rents a truck for $49.95 + $.75 per mile. ABC Truck Rental rents the same truck for $59.95 and $.50 per mile. The equatio

olga nikolaevna [1]

Answer: 40 miles

Step-by-step explanation:

Let x represent the number of miles and y represent the total cost

U-Haul: y = 0.75x + 49.95

ABC: y = 0.50x + 59.95

Use substitution method to solve for x:

0.75x + 49.95 = 0.50x + 59.95

0.25x + 49.95 = 59.95 subtracted 0.50x from both sides

0.25x = 10.00 subtracted 49.95 from both sides

x = 40 divided 0.25 from both sides

7 0

3 years ago

Helppp pls ASAP first correct answer gets brainleist​

Helppp pls ASAP first correct answer gets brainleist