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vesna_86 [32]
2 years ago
5

6

Mathematics
1 answer:
Morgarella [4.7K]2 years ago
6 0

Answer:

  • 276

Step-by-step explanation:

<u>Let the number be x, then we have:</u>

  • 1/3*x - 20 = 72
  • 1/3x = 72 + 20
  • 1/3x = 92
  • x = 92*3
  • x = 276

The number is 276

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What is 100.2 percent as a fraction and decimal
notka56 [123]

Answer:

1.002 Decimal and 1 2/100 fraction

Step-by-step explanation:

Move the decimal 2 places to the right and make 100.2 1.002

think 100.2 over 100. we get 100 2/100 also know as 1whole and 2/100

7 0
3 years ago
Read 2 more answers
Suppose that we wish to assess whether more than 60 percent of all U.S. households in a particular income class bought life insu
IceJOKER [234]

Answer:

A. 0.0049

B. Yes

Step-by-step explanation:

Sample proportion = 0.64

N = 1000

Population proportion = 0.60

We solve for standard deviation

= √p(1-p)/n

= √0.60(1-0.60)/1000

= √0.60x0.40/1000

= √0.00024

= 0.0155

A.

The probability of sample >=0.64

Z>=0.64-0.60/0.0155

Z >= 0.04/0.0155

So z >= 2.5806

Using excel this equal to 0.0049

0.0049 is probability of sample proportion being 0.64 at least.

B.

This answer in a shows that than 60% of households in the united states income class purchased life insurance last year.

3 0
2 years ago
maria walks 22 feet, then goes another 40 feet on a path that makes a 70 degree angle with the path she was on. how far is she,
hammer [34]

Answer:

132 feet

Step-by-step explanation:

22+60+70

7 0
3 years ago
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scoundrel [369]
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3 0
2 years ago
Find the measure of an interior angle and exterior angle of a regular 24gon
Julli [10]

Answer:

Interior Angle: 165°

Exterior Angle: 15°

Step-by-step explanation:

So first you have to find the sum of all interior angles of a polygon with <u>24 sides</u>. This can be found using the formula:

sum = ( <em>n</em> - 2 ) * 180°     where '<em>n</em>' is the number of sides.

When '<em>n</em> = 24' then the sum is:

sum = ( 24 - 2 ) * 180°

Simplify and solve.

sum = 22 * 180°

sum = 3960°

Since there are 24 sides to the polygon, there are 24 interior angles. <u>Assuming that this polygon is equilateral</u>, you can surmise that:

<em>Interior Angle</em> = sum° / <em>n</em>   where n is the number of sides,

3960° / 24 = 165° = Interior Angle

Using that information, and combine it with the [Supplementary Angles Theorem] the exterior angle can be found by:

165° + x = 180°

Solve for x.

8 0
2 years ago
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