Answer:

Step-by-step explanation:
4/5*3/3-1/3
4/5*3/3-1/3*5/5
4*3/15-5/15
4*3-5/15
12-5/15
7/15
Ah, direct variation/proportion.
That is simply a linear equation with a y-intercept of 0.
So... let's solve this.
Simply put, a direct variation multiplies the x-value by a constant to get the y-value.
Let's take the point

on this graph and solve for the constant of proportionality:

We easily solve that and get our answer of

. (B)
M = -2
In perpendicular lines, the slopes are opposite reciprocal. This means you flip the sign (from + to - or from - to +) and flip the numerator and denominator.
So 1/2 becomes negative, and 2/1 = 2
So the slope is -2
Answer:
70
Step-by-step explanation:
the 7 is in the tenths place of the number, so its value is 70
Answer:
19.5
Step-by-step explanation:
165 divided by 8 is 19.5