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Maru [420]
3 years ago
11

How do you solve -7x+(-21)=41

Mathematics
1 answer:
alex41 [277]3 years ago
7 0

Answer:

x = -62/7

Step-by-step explanation:

-7x+(-21)=41

-7x -21 =41

Add 21 to each side

-7x-21+21 = 41+21

-7x = 62

Divide by -7

-7x/-7 = 62/-7

x =- 62/7

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O Mr. Math S. Fun is looking for his missing pair of
dalvyx [7]

Answer:

1/3

Step-by-step explanation:

add all of the totals including the missing pair

we now have 24

7+1 is 8

24 minus 8 is 16

24 can be split into 2 groups of 8

and we have 2/3 left. which makes our solution 1/3

3 0
2 years ago
Which of the following is an advantage of using systematic random sampling?
bekas [8.4K]

This is a question that asks about the advantages of a systematic random sampling. Thus, we first take a look at the types of sampling, and then we see the advantage of systematic random sampling.

Samples may be classified as:

Convenient: Sample drawn from a conveniently available pool.

Random: Basically, put all the options into a hat and drawn some of them.

Systematic: Every kth element is taken. For example, you want to survey something on the street, you interview every 5th person, for example.

Cluster: Divides population into groups, called clusters, and each element in the cluster is surveyed.

Stratified: Also divides the population into groups. However, then only some elements of the group are surveyed.

Systematic:

One of the bigger advantages is that the systematic sampling eliminate clusters, which means that the last option is wrong.

Inadvertently missing patterns is a problem in systematic sampling, and not an advantage, thus the third option is also wrong.

It also does not reduce sampling variability, thus the first option is wrong.

From this, it can be concluded that the correct option is:

Systematic random sampling does not require a finite population size.

For another example of systematic random sampling, you can check brainly.com/question/21100042

8 0
2 years ago
Solve the following equation for the variable a 2a+b=c-4d
Natasha_Volkova [10]
2a+b=c-4d
a= c-4d-b/2
6 0
3 years ago
Read 2 more answers
How do you solve 24 divided by 3/8?
ICE Princess25 [194]
24/1 divided by 3/8 would be 64. That can be found by finding the reciprocal (inverse) of the second fraction, multiplying the numerators and denominators to get 192/3. Then to simplify, you can divide both numerator and denominator by 3 to get 64/1 or 64. Hope that helps!
4 0
2 years ago
Help please I’ll mark you brainliest!!
worty [1.4K]

Answer:

35 ft

Step-by-step explanation:

Sorry this took me so long, I am 99% sure it is right though

I hope this helps :)

3 0
3 years ago
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