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guajiro [1.7K]
3 years ago
14

Helen had $12 but I spent three dollars of it what percent did she spend?

Mathematics
1 answer:
Hatshy [7]3 years ago
8 0

Answer:

25%

Step-by-step explanation:

3/12

Divide:

3/12 = 0.25

Multiply by 100.

0.25 * 100 = 25%

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Solve.
Serhud [2]

Answer:

Step-by-step explanation:

12.9 + 10.2x = 35.1

10.2x = 35.1 - 12.9

10.2x = 22.2

x = 22.2/10.2

x= 222/102 = 111/51

x= 2\dfrac{9}{51}

6 0
3 years ago
Read 2 more answers
Find the distance between (-7,-2) and (11,3)
jarptica [38.1K]

Answer:

The answer is

<h2>\sqrt{349}  \:  \: units</h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

<h3>d =  \sqrt{ ({x1 - x2})^{2} +  ({y1 - y2})^{2}  }   \\</h3>

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-7,-2) and (11,3)

The distance between the points is

<h3>d =  \sqrt{ ({ - 7 - 11})^{2} +  ({ - 2 - 3})^{2}  }  \\  =  \sqrt{ ({ - 18})^{2} +  ({ - 5})^{2}  }  \\  =  \sqrt{324 + 25}  \\</h3>

We have the final answer as

<h3>\sqrt{349}  \:  \: units</h3>

Hope this helps you

5 0
3 years ago
an opaque bag contains 5 green marbles, 3 blue marbles, and 2 red marbles. if a marble is drawn at random what are the odds of d
nekit [7.7K]

Answer:

1 out of 2

Step-by-step explanation:

Sorry if I’m wrong

4 0
2 years ago
Which answer is correct?
luda_lava [24]

Answer:

The choice 210

Step-by-step explanation:

3{[3(9 - 2)] +[7(8 - 1)] }\\ 3[3(7) + 7(7)] \\ 3[21 + 49] \\ 3[70] \\  = 210

I hope I helped you^_^

4 0
3 years ago
Standard deviation of 19,29,21,22,23
MaRussiya [10]

Answer:

3.370459909

Step-by-step explanation:

Figure out the arithmetic mean of the numbers (22.8)

Subtract the mean from each number and square the difference

Add up the squared differences and divide the number by 5

Square root answer

3 0
3 years ago
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