Answer: For the first one, 12.5% chance
Step-by-step explanation:
The probability of flipping a coin and getting tails is 50%. Then, if you were to flip two coins and get both tails, you would have to divide the 50% by 2, which is equals to 25% of flipping two coins and getting them both tails.
So now we know...
Flipping one coin gives you 50% tails and 25% of flipping two coins and getting two tails
So now, we do it again with the third coin. We would divide the 25% by 2, which will get us to a 12.5% of getting all tails, or in fractions, 1/8
I’m not exactly sure about the other ones but I hope you found this one helpful!
<span>An algebraic expression is an expression constructed from a number of constants and variables utilizing algebraic operations. These algebraic operations are addition, subtraction, multiplication, division, and exponentiation. A constant is constant, so its value is unchanged. A variable changes based on the value provided. In the provided example, 2x-1, there are two constants, "2" and "1", and one variable "x." The algebraic operations utilized are multiplication and subtraction. In order to evaluate the value of the algebraic expression, the given value for the variable must be substituted for the variable x, and then the algebraic operations executed to obtain the answer.
For instance, if you were told that the value of x in this case was 2, then you would substitute the value 2 for x and perform the described operations. Remember to follow the order of operations when evaluating an algebraic expression!
2x-1 for x=2
2(2) - 1
4 - 1
3 is the answer.
Remember, even though the multiplication operation is not explicitly stated, it is implied that a constant attached to a variable (termed a coefficient) is multiplied with the value of the variable.</span>
Please attach a photo so I may help you.
Two consecutive integers are 17+18
Salinas will use 32 gallons for 480 miles
<h3>How to calculate the number of gallons required ? </h3>
Salinas used 15.6 gallons of gas for 234 miles
Miles can be described as the distance travelled by an object or an individual
The first step is to calculate the number of miles travelled using 1 gallon
15.6= 234
1= x
cross multiply both sides
15.6x= 234
x= 234/15.6
x= 15
1 gallon will take her 15 miles
Therefore, the number of gallons required for 480 miles can be calculated as follows
1= 15
x= 480
cross multiply both sides
15x= 480
x= 480/15
x= 32
Hence Salinas will require 32 gallons for 480 miles of the journey
Read more on miles here
brainly.com/question/11239018?
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