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3 years ago

11

HELP PLS I GIVE BRAINLIEST ILL REPORT IF YOU USE ME FOR POINTS

2 answers:

Minchanka [31]3 years ago

8 0

Answer:

1. x less than or equal to 1/3

2. x is less than 1

3. x is greater than 6

4. x is less than -2

Step-by-step explanation:

natima [27]3 years ago

3 0

1) keep your sign the same x 1/3
2)x<1
3)x>6
4)x<-2

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svetlana [45]

The area of a circle is A = r^2pi
Since the area is equal to 121pi the equation would be, 121pi = r^2. To find r in terms of pi take the square root of 121, to find the radius. Then multiply that by two to get the diameter.

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What will be the unit digit of the cube of a number ending with 9 ?

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3 years ago

Read 2 more answers

Quick 2 mins tell due 500÷30+200 decimal answer needed

GenaCL600 [577]

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8 0

3 years ago

In a survey of 90 students 20 choose rock.40 chose hip hop 30 chose country. In a school of 360 students how many would be expec

lina2011 [118]

Answer:

The students would be expected to choose rock be<u> 80</u> or students choose hip hop be <u>160</u> or choose to country be <u>120</u>.

Step-by-step explanation:

Given:

In a survey of 90 students 20 choose rock, 40 choose hip hop and 30 choose country.

Now, to find the students expected to choose hip hop or rock or country in a school of 360 students.

Let the number of students expected to choose rock be $x.$

Let the number of students expected to choose hip hop be $y.$

Let the number of students expected to choose country be $z.$

Total number of students = 360.

Now, to get the number of students choosing hip hop or rock or country by using cross multiplication method:

In a survey of 90 students 20 choose rock.

So, 90 is equivalent to 20.

Thus, 360 is equivalent to $x$ .

$\frac{90}{20} =\frac{360}{x} \\\\By\ cross\ multiplying\ we\ get:\\\\90x=7200\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\x=80.$

<u><em>Thus, the number of students expected to choose rock is 80.</em></u>

Now,

In a survey of 90 students 40 choose hip hop.

So, 90 is equivalent to 40.

Thus, 360 is equivalent to $y.$

$\frac{90}{40} =\frac{360}{y} \\\\By\ cross\ multiplying\ we\ get:\\\\90y=14400\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\y=160.$

<u><em>Therefore, 160 students expected to choose hip hop.</em></u>

And,

In a survey of 90 students 30 choose country.

So, 90 is equivalent to 30.

Thus, 360 is equivalent to $y.$

$\frac{90}{30} =\frac{360}{z} \\\\By\ cross\ multiplying\ we\ get:\\\\90x=10800\\\\Dividing\ both\ sides\ by\ 90\ we\ get:\\\\x=120.$

<u><em>Hence, 120 students expected to choose country.</em></u>

Therefore, the students would be expected to choose rock be 80 or students choose hip hop be 160 or choose to country be 120.

5 0

4 years ago