Answer:
42
Step-by-step explanation:
Based on the information given, point j is the midpoint, as it is shared by both line segments. Set the equation:
pb = pj + jb
Note:
pj = 14
jb = 28
Plug in the corresponding numbers to the corresponding variables:
pb = pj + jb
pb = 14 + 28
pb = 42
pb = 42 is your answer.
~
Answer:
b. 0.055
Step-by-step explanation:
The point estimate of the proportion of people who wear hearing aids is
The number of people in the sample who wear hearing aids divided by the total number of people in the sample.
In this problem, we have that:
Sample of 855.
47 people in the sample had hearing aids.
47/855 = 0.0549
Rounding up
0.055
So the correct answer is:
b. 0.055
Answer:
C
Step-by-step explanation:
Tip a positive number multiplied to a negative number is negative
All you have to do is add the number to the variable you need to. It works the same for subtraction instead you will put y-14 or any variable and number that is needed to subtract from it and remember when they say a number more than a variable it is + that number if they say a number less than a variable it is - that number .
y+14
Answer:
(6, 3 )
Step-by-step explanation:
Given the 2 equations
5x - y = 27 → (1)
5x + 4y = 42 → (2)
Multiplying (1) by - 1 and adding to (2) will eliminate the x- term, that is
- 5x + y = - 27 → (3)
Add (2) and (3) term by term to eliminate the x- term
5y = 15 ( divide both sides by 5 )
y = 3
Substitute y = 3 into either of the 2 equations and solve for x
Substituting into (2)
5x + 4(3) = 42
5x + 12 = 42 ( subtract 12 from both sides )
5x = 30 ( divide both sides by 5 )
x = 6
Solution is (6, 3 )
