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klemol [59]
4 years ago
15

about 4 out of every 5 people are right handed. if there are 30 students in a class, how many would you expect to be right hande

d?
Mathematics
2 answers:
dusya [7]4 years ago
8 0
Multiply 5x4 and you would get 20
vfiekz [6]4 years ago
8 0
I think the answer is 24 people.What I did was draw 6 circles and 5 stars in each circle because 5 x 6 = 30. Then I crossed out 1 star from each group/circle because the question states that about 4 out of every 5 people are right handed. then I added up the stars and ended up getting 24.


HOPE THIS HELPS :)
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What is the quotient of 5 7 ÷ 5 14 ?
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Answer:

<h2><u>=</u> <u>   57 / 514  </u>    <u>(Decimal: 0.110895)</u></h2>

Step-by-step explanation:

57 / 514

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Rewrite the equation as  

x /14 =  5/ 7 .  x/ 14 =  5/ 7

Multiply both sides of the equation by  

14.14  ⋅  x /14 =  14 ⋅ 5 /7

Simplify both sides of the equation.

Tap for fewer steps...

Cancel the common factor of  14 .  

Cancel the common factor.

14 ⋅  x /14 =  14 ⋅ 5 /7

Rewrite the expression.

x = 14 ⋅ 5 /7

Simplify  14 ⋅  5/ 7 .

Cancel the common factor of  7 .

Factor  7  out of  14 .

x = 7 ( 2 ) ⋅ 5/ 7

Cancel the common factor.

x = 7 ⋅  2 ⋅  5/ 7

Rewrite the expression.

x  = 2 ⋅ 5

Multiply  2  by  5 .

<u>x = 10</u>

3 0
3 years ago
Prove that sin x cos x = cot x is not a trigonometric identity by producing a counterexample.
BaLLatris [955]

Answer:

see below

Step-by-step explanation:

sin x cos x = cot x

We need to show a counter example

Let's use 30 degrees

sin 30 cos 30 = cot 30

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6 0
4 years ago
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Answer:

<h2>30 square meters of carpet</h2>

Step-by-step explanation:

A = 6m x 4.2m + 3.2m x 1.5m

A = 25.2 square m + 4.8 square m

A = 30 square m of carpet

Hope that helps!

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Answer:

− 18 p + 30

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