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Ghella [55]
2 years ago
11

In a school choir there is 1 boy for every 4 girls. There is a total of 11 boys. How many girls are in the choir.

Mathematics
1 answer:
NikAS [45]2 years ago
4 0

Answer:

44 Girls

Step-by-step explanation:

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In triangle ABC below, which trigonometric ratio equals 3/2?
Vlada [557]
The figure is right triangle with base =segment AB = 3 and height = segment AC = 2.

The angle B has tangent, tan (B) = 2 / 3

The angle C, has tangent, tan (C) = 3 / 2

Then, the answer is option C, tan C
5 0
3 years ago
Read 2 more answers
Hi guys! could you please help me out with this real quick? Thanks y'all!<br><br> -Grace :))
Alla [95]

Answer:

B

Step-by-step explanation:

is the only one with a constant rate of change which would be -2

8 0
3 years ago
4. Which of the following lines is perpendicular to y = -2X + 8?
Alenkinab [10]

For this case we have to by definition, if two lines are perpendicular then the product of its slopes is -1.

That is to say:

m_ {1} * m_ {2} = - 1

We have the following equation:

y = -2x + 8

So:

m_ {1} = - 2

Thus:

m_ {2} = \frac {-1} {m_ {1}}\\m_ {2} = \frac {-1} {- 2}\\m = \frac {1}{2}

Thus, a line perpendicular to the given line must have slope m = \frac {1} {2}.

Option A:

x + 2y = 8\\2y = -x + 8\\y = - \frac {1} {2} x + 4

It is not perpendicular!

Option B:

x-2y = 6\\2y = x-6\\y = \frac {1} {2} x-3

If it is perpendicular!

Option C:

2x + y = 4\\y = -2x + 4

It is not perpendicular!

Option D:

2x-y = 1\\y = 2x-1

It is not perpendicular!

The correct option is option B

ANswer:

Option B

5 0
3 years ago
Hunter's time for the 100-meter freestyle event was 57.9 seconds. His time for the second half of the race was 4.7 seconds slowe
Ratling [72]

Answer:

Step-by-step explanation:

Time for first race 57.9seconds

x=time for first half of race

x-4.7=second half of race

Equations is

x + (x-4.7)=57.9

2x-4.7=57.9

2x=57.9+4.7

2x=62.6

x=31.3

Check answer

31.3 + (31.3-4.7)=57.9

31.3 +26.6=57.9

57.9=57.9

6 0
3 years ago
4 2/3 - (-1 4/5) (by the way 4/5 is a fraction)
Free_Kalibri [48]

Answer: 6

Step-by-step explanation:

Eliminate the negative and change the operation.

4 + 1

Rewrite equation with parts separated

4 + + 1 +

Add whole numbers

4 + 1 = 5

Solve fraction

+ = ??

Find LCD of and . LCD = 15

+ =

Simplify fraction

= 1

Combine whole number and fraction

5 + 1 + = 6

4 0
2 years ago
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