Answer:
JK=7
Step-by-step explanation:
From the line segment, since J is on it ,it means the line segment is
represented as I J K
from this illustration, we can say that the longest part of the line segment is from I to K
this means that, IJ +JK =IK
making JK the subject,
JK= IK - IJ
but from the question, JK=2x-1 , IK=3x+2 and IJ=3x-5
substituting them in the expression,
2x-1 =3x+2 -(3x-5)
solving for x
2x-1 =3x+2-3x+5
2x-1 =0+7
2x-1 =7
2x=1+7
2x=8
dividing through by 2
2x/2 =8/2
x=4
but the question says we should find the numerical value for JK
but from the line segment,
JK=2x-1
but now we know the value of x to be 2
so substituting it in the formula
JK= 2(4)-1
JK=8-1
JK=7
therefore, the numerical value for JK is 7
Answer:
<h3>QUESTION;</h3>
This data set represents the number of cups of flour used in different recipes.
What is the mean of this data set?
{12, 13, 23, 112}
Enter your answer as a fraction in simplest form in the box.
___ cups
<h3>ANSWER</h3><h3> 13 po </h3>
Step-by-step explanation:
<h3>#Carryonlearing</h3>
The water bill was 1/5 of the total, so was 0.2*$540 = $108.
Answer:
5 inches
Step-by-step explanation:
Answer:
The difference between the pulse rate of 36 beats per minute and the mean pulse rate for females is 42 beats per minute.
Step-by-step explanation:
We are given that for a data set of the pulse rates of adult females, the lowest pulse rate is 36 beats per minute, the mean of the listed pulse rate is x = 78.0 beats per minute, and their standard deviation is s = 13.7 beats per minute.
The mean pulse rate for females = 
= 78.0 beats per minute
The standard deviation of the listed pulse rate = s = 13.7 beats per minute
The given pulse rate is = 36 beats per minute
So, the difference between the pulse rate of 36 beats per minute and the mean pulse rate for females is given by;
= - 36
= 78 - 36 = 42 beats per minute
Hence, the required difference is 42 beats per minute.
