Roger completed a probability experiment with a coin. He flipped the coin 32 times, and it landed on tails eight times. He looked at the results of his experiment to determine the ratio of heads outcomes to tails outcomes. The ratio of heads to tails in simplified form is _ to _
can somebody help me plz :(
Answers
Answer:3:1
Step-by-step explanation:
Total number of times he flipped the coin =32 times
Out of the 32 times, the outcome of tails is 8 times
The outcome of heads will be
Total times- Tails outcome
32-8
=24 times
Tails outcome= 8 times
Heads outcome= 24 times
Ratio of heads to tails is
Total heads outcome/total tails outcome
=24/8
=3/1
Therefore ratio of heads to tails is 3:1
1 to 3
Since you know that he landed on tails 8 out of 32 times, he must have flipped heads for the flips he did not flip tails. So, subtract 32 minus 8, which equals 24, and your answer is 8 to 24. Simplify this like you would with a fraction; the greatest common factor is 8 so divide the "numerator" and the "denominator" by 8. Therefore your final answer is 1 to 3.
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7/2 − 2x = 11/2
7/2 − 7/2 − 2x = 11/2 − 7/2
−2x ÷ −2 = 4/2 ÷ − 2
x = −1
Describe the properties of equality that Kira used.
The first step is to use the _______ property of equality to combine the constant terms.
1.addition
2.subtraction
3.multiplication
4.division
The second step is to use the _______ property of equality to isolate the variable.
1.addition
2.subtraction
3.multiplication
4.division
Answers
Answer:
1subtraction 2division
Answer:
1 subtraction 2 division
Step-by-step explanation:
Answers
Answer:
B
Step-by-step explanation:
We start with 16 grams of water
At the end of the first hour , we decreased by 3.5%
We take the amount and multiply by the percent decreased. Then subtract that from the original amount
16*3.5% =
16*.035 =.56
16-.56 = 15.44
At the end of the second hour , we decreased by 4.25%
We take the amount and multiply by the percent decreased. Then subtract that from the amount we started with at hour 2
15.44 *4.25%
15.44 *.0425=.6562
15.44-.6562=14.788
Answer:
B.
Step-by-step explanation:
So there are 16 grams initally. Then, the amount of water decreases by 3.5%.
So first we must find 3.5% of 16. 3.5% in decimal form is 0.035, since you divide 3.5 by 100. Then, when you multiply 0.035 by 16, you get 0.56. Since the solution decreased by that percentage, you must subtract 0.56 from 16, which is 15.44.
Then the amount of water decreases by 4.25%. That in decimal form is 0.0425. You multiply it by 15.44, and it comes out to 0.6562. You subtract that from 15.44, not 16, since some of the water has evaporated. So you get 14.7838.
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For one month Siera calculated her home town's average high temperature in degrees Fahrenheit. She wants to convert that
temperature from degrees Fahrenheit to degrees Celsius using the function - 32). What does C(F) represent?
the temperature of F degrees Fahrenheit converted to degrees Celsius
the temperature of F degrees Celsius converted to degrees Fahrenheit
the temperature of C degrees Fahrenheit converted to degrees Celsius
the temperature of C degrees Celsius converted to degrees Fahrenheit
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how do this?
y= x+2
y= -4x+7
Answers
y= x+2
y= -4x+7
As you can see both the expressions, x+2 and -4x+7 are equal to "y". That means they are equal to each other too.
So let's equal them and solve it.
Now we have x's value we will plug it in the first equation to find "y".
(1,3)