Answer:
y = -3/2x + 1 1/2
Step-by-step explanation:
the slope would be -3/2 because you have to find the reciprocal and switch the sign. To find the y intercept you would plug in the points to the equation.
6 = -3/2(-3) + b
6 = 4.5 + b
1.5 = b
The answer is A because it just distributed the questions (if you need further explanation feel free to comment)
The average speed is 37 minutes
25 + 45 + 40 = 110
_____
3)110. 36.6
9
20
18
2
Answer:
24.75 is 55% of 45
Step-by-step explanation:
The proportionality constant "k" is 1.88
<h3><u>Solution:</u></h3>
Given that y varies directly with x
y = 15 when x = 8
To find: proportionality constant "k"
Direct variation means that increase/decrease in one quantity also causes increase/decrease in other quantity.
⇒ y varies directly with x
This means,

Can also be written as:
y = kx
Where "k" is the proportionality constant
Substituting the given values of "x" and "y"
15 = k(8)

k = 1.875
On rounding to nearest hundredths place we get 1.88
Thus the proportionality constant is 1.88