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Digiron [165]
2 years ago
9

???????????????????????????????

Mathematics
1 answer:
mrs_skeptik [129]2 years ago
8 0

Answer:

i think its A

Step-by-step explanation:

you add all the numbers up together and dvide by how many numbers there are. thats what i did and got 6

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If standard deviation of a given data is 5 and mean is 50 then coefficient of variation (C.V) is equal to *
torisob [31]

Answer:

10

Step-by-step explanation:

Coefficient of variation is a measure of dispersion, showing the variability of data in relation to the mean.

The Coefficient of variation compares the degree of variation between data points. The coefficient of variation is the ratio of mean to standard deviation. It is given by the formula:

Coefficient of variation = mean / standard deviation

Coefficient of variation = 50 / 5

Coefficient of variation = 10

4 0
3 years ago
Lisa an experienced shipping​ clerk, can fill a certain order in 7 hours. ​bill, a new​ clerk, needs
OLga [1]

Answer:

3.73 hours

Explanation:

In 1 hour, Lisa does 1/7th of the order while Bill does 1/8th of the order in an hour. To find out how long it will take them to fill the order, we have to:

Step 1:

Add the rate of both Lisa and Bill together

1/7 + 1/8

Step 2:

Since both denominators of the fractions are different, you have to find the least common multiple of 7 and 8

7·8= 56    8·7= 56

which is 56.

Step 3:

Then, you have to multiply the numerator of 1/7 with 8 and the numerator of 1/8 with 7.

1·8= 8    1·7= 7

The fractions would now have equal denominators:

Lisa: 8/56    Bill: 7/56

Step 4:

Now, you can add them together

8/56 + 7/56

which equals to 15/56. Both Lisa and Bill together completes 15/56th of the order in 1 hour.

Step 5:

15/56 is not the final answer as it is the RATE of them working together. To find how long it will take them total to complete the order, you must divide 56 with 15.

56/15

which is 3.73 hours in decimal form (rounded).

5 0
3 years ago
Please explain it step by step I dont get it.
Ivenika [448]
So, we’re looking for the amount of money Tom needs to spend to get his free meal.
X + 30.25 >
X > 9.75

X is the additional amount that Tom needs to spend. You subtract 30.25 on both sides in order to solve for x.

So, your answer would be at least $19.75
5 0
3 years ago
Which statement is always true about two congruent polygons?
Oduvanchick [21]

Answer:The number of angles & sides is always the same.

Step-by-step explanation:

8 0
3 years ago
5. Find the total cost to the nearest hundredth. $12.99 T-shirt, 6% tax
Vlada [557]

Answer:

$13.80

Step-by-step explanation:

So we start with 12.99 then we have to multiply that by 0.06 to find what we would add which is 0.7794. After this we add 12.99 with 0.7794 and it becomes 13.7694 round this to the nearest hundredth and it becomes 13.80

4 0
3 years ago
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