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butalik [34]
2 years ago
5

15% of the students in the library have brown eyes. If there are 9 students with brown eyes, How many students are in the librar

y
Mathematics
2 answers:
Nutka1998 [239]2 years ago
8 0

Answer:

60

Step-by-step explanation:

ENGLISH

If you Multiply 9x100 you get 900 then you divide 15 divided by 900 is 60

SPANISH

Si multiplica 9x100 obtiene 900, entonces divide 15 dividido por 900 es 60

Hope this will help you

kirill [66]2 years ago
3 0

Answer:

Step-by-step explanation:

Download pdf
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Solve for the unknown quantity of x<br> 15/2= 60/x
grin007 [14]

Answer:

Directions: Write the name and composition of the following composer/s below. Space provided for your answer.

3 0
3 years ago
4.
zubka84 [21]

Answer:

See Explanation Below

Step-by-step explanation:

Given

(sin x - cos x)^2 = sec^2x - tan^2x - 2sinx.cos x.

Required

Prove

To start with; we open the bracket on the left hand side

(sin x - cos x)^2 = (sin x - cos x)(sin x - cos x)

(sin x - cos x)^2 = (sin x )(sin x - cos x)- (cos x)(sin x - cos x)

(sin x - cos x)^2 = sin^2 x -sinx cos x - sin xcos x + cos^2 x

(sin x - cos x)^2 = sin^2 x -2sinx cos x + cos^2 x

Reorder

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

From trigonometry;

sin^2x + cos^2x = 1

So;

(sin x - cos x)^2 = sin^2 x + cos^2 x - 2sinx cos x

becomes

(sin x - cos x)^2 = 1 - 2sinx cos x

Also from trigonometry;

sec^2x - tan^2x = 1

So,  

(sin x - cos x)^2 = 1 - 2sinx cos x

becomes

(sin x - cos x)^2 = sec^2x - tan^2x  - 2sinx cos x

Proved

3 0
3 years ago
He found a quotient of 7 which division problem was he using?
marshall27 [118]
The answer is 3 1/2 divided by 1 1/2 because those equal 7.
~Silver
6 0
3 years ago
D = 7 mm<br> Calculate the radius of the circle.
Vikentia [17]

Answer:

r= d/2

7/2

3.5

3.5 is the answer

Step-by-step explanation:

5 0
3 years ago
To multiply a decimal number by 1000 move the decimal point
KengaRu [80]
You'll have to move the decimal point<span> to the right as many </span>places<span> as there are zeros in the factor,then you'll have to m</span>ove the decimal point<span> one step to the right (10 has one zero),and m</span>ove the decimal point<span> two steps to the right (100 has two zeros).</span>
5 0
3 years ago
Read 2 more answers
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