Answer:
k= 1 mile per minute
Step-by-step explanation:
There is a proportional relationship between the time (in minutes) Dave spends riding the train, x, and the distance he travels (in miles), y.
The table representing this information is given below:

The equation of proportionality is given as: y=kx
When x=8, y=8
Substituting we have:
8=8k
Divide both sides by 8
k=1
Therefore, the constant of proportionality, k= 1 mile per minute
Answer:
True
Step-by-step explanation:
we know that
A non-negative number is a real number greater than or equal to zero
In this problem
we have

The solution of the inequality is all real numbers greater than or equal to zero [0,∞)
Therefore
express a non-negative number in symbols
Answer:
Use the equation mx+b=y
mx represents the slope and b represents the y intercept.
So, this would mean the equation is : 1/2x + -7 = y
Answer:
132
Step-by-step explanation:
Straight lines add up to 180
180-48=132
Answer:
No, none of these are in a 1:2:1 ratio form. To find out we simply divide the first number by the original number, then multiply the other original numbers by what we just got to find out if it works.
Let's try #1.
3/1 = 3. 2(3) = 6. We now already know that #1 is incorrect because it says 8 instead of 6.
#2 and #3
We can tell these are both wrong because the first and last number have to equal the same, but in these they are different.
Hope this helps you! :)