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Lelechka [254]
3 years ago
13

A stratified sample in which the number of sampling units drawn from each stratum is in proportion to the population size of the

stratrum is called
Mathematics
1 answer:
jekas [21]3 years ago
6 0
Noooooooooooooooooooooooo
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Help Me Pls Thanks <3
dybincka [34]
If there are 150 total instruments in said Orchestra, we'll need to divide that number in half.
75, simple enough. Now we know that half of 150 is 75.
Start by writing your problem like this: 150= 75w+37.5b
That equation is all I can think of, because 37.5 is half of 75, which means that's roughly the number you're looking for. Sorry if this doesn't help much<span />
8 0
3 years ago
Eight times a number increased by 6 is 62
N76 [4]
8x+6=62

8x=62-6

8x=56

X=56/8

X=7

The answer is 7. Hope this helps!
3 0
3 years ago
Read 2 more answers
3. Find the lengths of d<br> d<br> 15<br> 7<br> 6<br> 10
siniylev [52]

Answer:

15

Step-by-step explanation:

As you can see on the side it says 15 and that is the length of the structure and it would be the same all around

4 0
3 years ago
Algebra ,, will mark brainliest!!
Viktor [21]

Answer:

B

Step-by-step explanation:

(1 1/2,-2)

solve for x and get 1 1/2

solve for y and get -2

7 0
2 years ago
When we add/subtract fractions, why do we need denominators?​
adoni [48]

Answer:

Step-by-step explanation:

so we know what to add or subtract by

6 0
3 years ago
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