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nydimaria [60]
3 years ago
13

There are 32 female performers in a dance recital. the ratio of men to women is 3 to 8. how many men are in the dance recital?

Mathematics
2 answers:
Paraphin [41]3 years ago
7 0
None there are only 32 FEMALe performers
natka813 [3]3 years ago
7 0
There are 12 men because 32 divide by 8 is 4 and 4*3 is 12
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A french class has a total of 25 student.The number of males is 7 more than the number of females how many males and how many fe
Lady_Fox [76]

Answer:

16 males and 9 females

Step-by-step explanation:

To solve this we can use a system of equations.

Let's start by naming the number of females x.

The number of males would then be y.

<u>Using these variables, we can set up 2 equations using info provided:</u>

A french class has a total of 25 students, -> x+y=25

The number of males is 7 more than the number of females -> x+7=y

Use substitution to solve.

<u>From the second equation:</u>

x+7=y

Subtract 7 from both sides.

x=y-7

Substitute that into the first equation.

x+y=25

y-7+y=25

Combine like terms.

2y-7=25

Add 7 to both sides.

2y=32

Divide both sides by 2.

y=16

Substitute y=16 into equation 2.

x+7=y

x+7=16

Subtract 7 from both sides.

x=9

Therefore, there are 16 males and 9 females in the french class.

3 0
3 years ago
Read 2 more answers
19 out of 34 what is the percenatge in 1 decimal place
solong [7]
Type 19/34*100 into your calculator, and out comes the answer.
3 0
3 years ago
Read 2 more answers
100 POINTS!!!!!!!!
yawa3891 [41]

Form the confidence level (99%), we calculate the "alpha" value

alpha=1-(99/100)=0.01

Now, calculate the critical probability (p-start)

p*=1-(alpha/2)=1-(0.01/2)=0.995

z-score could be calculated from p*,,,

z-score=2.57583

Now, calculate the Margin of Error:

standard deviation = s

number of adults = n

ME=(z*s)/(sqrt n)=(2.57583*12)/(sqrt 250) = 1.955

The confidence interval = mean +or- ME

                                     = 70+1.955  or  70-1.955

So that we can conclude that the 99% confidence interval for the mean beats per minute is 68.045 and 71.955

I hope you got the idea!

5 0
3 years ago
Read 2 more answers
Directions: Choose the letter of the correct answer.
Bezzdna [24]

Answer:

Step-by-step explanation:

1) y = 3x -------------(I)

  y = 4x  - 5 -------------(II)

Plug in y= 3x in equation (II)

3x  =  4x - 5

3x + 5 = 4x

       5 = 4x - 3x

      5 = x

x= 5

Plug in s = 5 in equation (I)

y = 3*5 = 15

x = 5

y = 15

4 0
3 years ago
a bag contains six red balls, six greens balls, five yellow balls and three black balls. A ball is picked at random from the bag
madreJ [45]

Answer:

the 6 greens

5 0
3 years ago
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