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Elena-2011 [213]
3 years ago
12

there is a ratio of 5 boys to 3 girls in the chorus. They are 24 boys in the chorus. How many girls are there?

Mathematics
2 answers:
Nana76 [90]3 years ago
7 0
Ok, so at first this question seems tricky, since 5 does not go into 25.  However, you can't have a percentage of 1 person.  Since 5 goes into 25 5 times, then we will go with that.  So multiply 3 x 5 to get 15 girls.  Because you can't have a fraction of a single person.
Kobotan [32]3 years ago
7 0
You have to use proportion for this problem, so you do 
 
5 boys  =  3 girls
24 boys =  ? girls
24 times 3 equals 72. 72 divided by 5 equals 14.4. You have to round this answer to get 15 girls.
Hope this helped :D
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What is the present value of 6000 received 14 years from today when the interest rate is 10%
likoan [24]

Answer:

$14400

Step-by-step explanation:

Given data

Principal= 6000

Time= 14 years

Rate= 10%

Let us use the simple interest expression to find the final amount

A=P(1+rt)

substitute

A=6000(1+0.1*14)

A=6000(1+1.4)

A=6000*2.4

A=$14400

Hence based on a simple interest model the final amount is $14400

3 0
3 years ago
write an equation in slope intercept form for the line that passes through (4, -4) and is parallel to 3x+4x=2y-9
photoshop1234 [79]

Answer:

\large\boxed{y=\dfrac{7}{2}x-18}

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

Convert the equation of a line 3x + 4x = 2y - 9 to the slope-intercept form:

3x+4x=2y-9

7x=2y-9             <em>add 9 to both sides</em>

7x+9=2y       <em>divide both sides by 2</em>

\dfrac{7}{2}x+\dfrac{9}{2}=y\to y=\dfrac{7}{2}x+\dfrac{9}{2}

Parallel lines have the same slope. Therefore we have the equation:

y=\dfrac{7}{2}x+b

Put the coordinates of the point (4, -4) to the equation:

-4=\dfrac{7}{2}(4)+b

-4=7(2)+b

-4=14+b       <em>subtract 14 from both sides</em>

-18=b\to b=-18

Finally we have the equation:

y=\dfrac{7}{2}x-18

8 0
4 years ago
How many inches are in 5 1/2
stealth61 [152]

There are 12 inches in every foot 5 x 12 is 60 half a foot would be 12÷2=6  so 60+ 6=66 inches

3 0
3 years ago
An electronic store prices 3 dozen video games at a total of 1467 if each video game costs the same amount what m is the total c
PilotLPTM [1.2K]

Answer:4 dozens of video games would cost $1956

Step-by-step explanation:

An electronic store prices 3 dozen video games at a total of 1467. A dozen of video games is 12. Therefore, the total number of video games whose cost is 1467 is 12 × 3 = 36

if each video game costs the same amount, then the cost of one video game would be

1467/36 = $40.75

The total number of video games in 4 dozens of video game would be

4 × 12 = 48

Therefore, the total cost of 48 video games would be

48 × 40.75 = $1956

4 0
3 years ago
13 – 6x = 2(8 + 3x) <br> x= ???????
ruslelena [56]

Answer:

13-6x=2\left(8+3x\right)

13-6x=16+6x

13-6x-13=16+6x-13

-6x=6x+3

-6x-6x=6x+3-6x

-12x=3

\frac{-12x}{-12}=\frac{3}{-12}

x=-\frac{1}{4}

or

x=-0.25

8 0
3 years ago
Read 2 more answers
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