12.4 , 13.7 , 12.0 , 14.7 , 15.2 , 11.9 , 15.6
13.8 , 14.2 , 12.5 , 15.0 , 16.0 , 13.1 , 11.7
If the class creates a histogram of the data in the table, how many students are in the range 12 cm to 13.9 cm?
1) 3
2) 4
3) 7
4) 8
The correct answer is:
4) 8
Explanation:
We want to find the frequency of this range. To do this, we count how many values fall between 12.0 and 13.9. There are 8 total values that do this, so the answer is 8.
In the given data set, there are 7 values in the given range.
Here we just need to find the number of values between 12cm and 13.9 cm, from the given table, these are:
12.1 cm, 13.5 cm, 12.4 cm, 13.7 cm, 13.8 cm, 12.5 cm, 13.1 cm
So there are 7 values in the given range, which means that 7 students are in the range of 12cm and 13.9cm.
Then the correct option is the third one.
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Answer:
Therefore the unknown solution is 36% acid.
Step-by-step explanation:
a = b – 2
What is the solution to the set of equations in the form (a, b)?
(–2, –6)
(–7, –9)
(–11, –9)
(–12, –10)
Good Morning
a-3b=16
a=b-2
Solve a=b -2 for a
Substitute b-2 for a in a-3b=16
a-3b=16
b-2-3b=16
Simplify both sides of the equation
-2b-2=16
Add 2 to both sides
-2b-2+2=16+2
-2b=18
Divide both sides by -2
-2b/-2 = 18/-2
b= -9
Substitute -9 for b in a=b -2
a=b -2
a=-9-2
Simplify both sides of the equation
a= -11
Answer: (-11,-9)
I hope that's help !
Happy Sunday :)
Answer:
The solution to the set of equations is (-11, -9).
Step-by-step explanation:
The solution to the inequality 3b - 7 < 32 is b < 13.
To solve the inequality 3b - 7 < 32, we can isolate the variable b.
Let's add 7 to both sides of the inequality:
3b - 7 + 7 < 32 + 7
Simplifying:
3b < 39
Now, divide both sides of the inequality by 3:
(3b)/3 < 39/3
Simplifying further:
b < 13
Therefore, the solution to the inequality 3b - 7 < 32 is b < 13.
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Answer:
3:23
Step-by-step explanation:
If 19 of the 23 participants in a triathlon are men then that means there are 4 participants that are women
so the ration would be 4 women for the 23 participants
The ratio of the number of women participating to the total number of participants in the triathlon is 4:23.
In a triathlon, there are 23 participants in total, with 19 of them being men. To find the ratio of women to the total number of participants, we first need to determine the number of women participating.
To do this, subtract the number of men (19) from the total number of participants (23):
23 (total participants) - 19 (men) = 4 women
Now that we know there are 4 women participating, we can calculate the ratio:
Number of women : Total number of participants
4 : 23
So, the ratio of the number of women participating to the total number of participants is 4:23.
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