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Yuki888 [10]
3 years ago
10

20% of 150 is what number?

Mathematics
2 answers:
melisa1 [442]3 years ago
7 0
20/100 * 150 = 30

so the answer is 30
deff fn [24]3 years ago
5 0
To find a number's , let's say "x%" you should multiply that number by, \frac { x }{ 100 } , so we want to find 150 's 20% , so we will multiply , 150 with \frac { 20 }{ 100 } , so :

150\cdot \frac { 20 }{ 100 } \\ \\ We\quad can\quad simplify\quad \frac { 20 }{ 100 } \\ \\ \frac { 20 }{ 100 } =\frac { 2\cdot 10 }{ 10\cdot 10 } =\frac { 10 }{ 10 } \cdot \frac { 2 }{ 10 } =1\cdot \frac { 2 }{ 10 } =\frac { 2 }{ 10 } \\ \\ 150\cdot \frac { 2 }{ 10 } =\frac { 150\cdot 2 }{ 10 } =\frac { 300 }{ 10 } =30\\ \\ %20\quad of\quad 150\quad is\quad 30
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Answer:

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Step-by-step explanation:

For this exercise we need to use the following equation:

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This equation give us the number of assignation of n elements in k cell, where n1, n2, ..nk are the element that are in every cell

In this case we have 15 student that need to be assign in three vehicles with an specific capacity. This vehicles would be the equivalent to cells, so we can write the equation as:

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Because the first vehicle have 7 seating, the second vehicle have 5 seating and the third vehicle have 3 seating.

Solving the equation we get 360360 ways to organized 15 students in three vehicles with capacity of 7, 5  and 3 seating.

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ratelena [41]

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MA_775_DIABLO [31]

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According to the question,

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Hence, the slope of the perpendicular line b is -1/7 if the slope of the perpendicular line a is 7.  

Learn more about perpendicular lines here

brainly.com/question/2505127

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