Answer:
4
Step-by-step explanation:
The constant of proportionality is what determines the relationship between y and x. If t is the constant of proportionality then an example is y = tx .
So 4 is the constant of proportionality
7) (12 + 6)/(2 +4)
(18)/(6) = 3
8) (42 - 24)/6
(18)/6 = 3
9) (9 + 16) - (2 x 4)
25 - 8 = 17
10) 60 - (3 + 2) x 5
60 - 5 x 5
60 - 25 = 35
11) 18 + (9/3)
18 + 3 = 21
12) 5 x (2 + 4 + 3)
5 x (9) = 45
hope this helps
Answer:

Step-by-step explanation:

Answer:
x =1 for the first problem
and for second question
Step-by-step explanation:
Let's solve your inequality step-by-step.
|2x+5|>0.5
Solve Absolute Value.
|2x+5|>0.5
We know either2x+5>0.5or2x+5<−0.5
2x+5>0.5(Possibility 1)
2x+5−5>0.5−5(Subtract 5 from both sides)
2x>−4.5
2x2>−4.52(Divide both sides by 2)
x>−2.25
2x+5<−0.5(Possibility 2)
2x+5−5<−0.5−5(Subtract 5 from both sides)
2x<−5.5
2x2<−5.52(Divide both sides by 2)
x<−2.75
Answer:
x>−2.25 or x<−2.75