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stepan [7]
3 years ago
5

In a probability experiment Eric flipped a coin 30 times the coin landed on heads 20 times what is the ratio of heads to tails i

n the experiment
Mathematics
2 answers:
SIZIF [17.4K]3 years ago
8 0

Answer:

<u>It's 2/1 i promise !!</u>

Step-by-step explanation:

First, find the number of times the coin landed on tails.

30 - 20 = 10

The ratio of heads to tails can be expressed in three ways.

1. 20 to 10

2. 20:10

3. 20/10

The fraction <u>20/10</u> can be simplified to . <u>2/1</u>

pshichka [43]3 years ago
4 0

Answer:

it would 600

Step-by-step explanation:

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Tom has three times as many pencils as pens but has a total of de 100 writing utensils. How many pencils and pens does toms have
IrinaVladis [17]

Answer:

Tim has 75 pencils and 25 pens

Step-by-step explanation:

To solve this create a system of equations. To do so, first create an equation for the total number of utensils that he has. Let x equal the number of pencils and y equal the number of pens.

x+ y = 100

Now make one for the comparison of the two and solve for the constant.

x = 3y

x - 3y = 0

Now to solve the system, multiply the second equation by -1 and add them together.

x + y = 100

-x + 3y = 100

-----------------

4y = 100

y = 25

Now that we have the number of pens, find the number of pencils using an equation.

x + y = 100

x + 25 = 100

x = 75

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
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mote1985 [20]
Okay it might not be right but I say B
7 0
3 years ago
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Step-by-step explanation:

5 0
3 years ago
What is the solution of the equation shown?<br> -1.2(3x - 3) = 4(3x + 0.9)
MariettaO [177]

Answer: x=0

Step-by-step explanation: -1.2(3x-3) = 4(3x+0.9)                                           -3.6x+3.6=12x+3.6                                                                                             -3.6x-12x+12x=12x+3.x+12x                                                                                   -15.6x+3.6-3.6=3.6-3.6                                                                                          -15.6x/-15.6=0/-15.6                                                                                           x=0                          

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