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Goshia [24]
4 years ago
12

the school chorus has 52 students, which represent 26% of the seventh graders. how many student are in the seventh grade?

Mathematics
1 answer:
Alisiya [41]4 years ago
3 0
So the equation would be 52/x (x being the number of total number of 7th graders) and 26/100 (100 being 26% out of 100%). 
You do cross multiplying which would be 52/x = 26/100 ------ 5200 = 26x
You divided 26 by both sides. 
5200/26=200
There are 200 7th graders total. 
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Malia split up the large container of salsa that she bought into 5 bowls to place around her house for the party if each Bowl co
Hoochie [10]

Answer:

You never gave the answer choices but it should look something like this.

5 ⋅ 8.5 = x

or

x / 5 = 8.5

as for x.  X=42.5

3 0
4 years ago
A set of data with 100 observati removed, what is the mean of the new data se of 267 There are six outliers in the data set, whi
Andreas93 [3]

Answer:

<u>the mean-average of the data without the outliers is 22572/94 = 240.12766 correct to four digits.</u>

Step-by-step explanation:

If the six outliers are removed, what is the mean average of the remaining data... is ASSUMED what the question was supposed to ask. I'll go out on a limb here, because there really isn't much else you can calculate with just

this much data anyways. I refer to the mean or average as the mean-average....just sayin'

 

Mean-Average = total/count , which means the total = count * mean-average.

 

Well, the data containing the outliers has a mean-average of 267 and a count of 100 statistics as given in the problem. So the total of all of the data including the outliers is 26700.

 

Likewise, the six outliers have a mean-average of 688 as given in the problem.

So the total of the outliers is 688 * 6 = 4128.

 

As a result, the total of the 94 statistics when the six outliers are rejected is 26700-4128=22572.

 


6 0
3 years ago
Katy spends 1/10+1/5+1/2how long did katy spend.?
Arlecino [84]
Katy spends 8/10.  1/10 and 1/5=2/10 and 1/2=5/10 so 1/10+2/10+5/10=8/10 or 4/5 simplified. 
7 0
3 years ago
Annie has 385 flowers she has 238 less than Zoe how many flowers does Zoe have
lord [1]

Answer:

623

Step-by-step explanation:

Add 385 to 238

7 0
3 years ago
Use the Discriminant to find the nature of roots of the following relation: y = -2x2 + 9x - 7
Alex_Xolod [135]

Answer:

two real roots

Step-by-step explanation:

y = -2x^2 + 9x - 7

This is in the form

ax^2 +bx+c

a = -2  b = 9  c = -7

The discriminant is

b^2 -4ac

(9)^2 - 4(-2) (-7)

81 - 56

25

Since the discriminant is greater than zero, there are two real roots

7 0
3 years ago
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