Answer:
Step-by-step explanation:
we know that
To find the rate of text messages per hour, first divide the total messages by the total time in minutes
so
Convert to messages per hour
Remember that
Multiply by
Solution:
You need minimum of two lines which are parallel or coincident to represent proportional relationship.
Suppose two lines in one dimensional plane is Coincident.These lines are represented by a and b. Then to represent proportional relationship between them ,we can write it as follows
a = K b
or, b= Ta, where K and T are proportionality constant.
→→Line in two dimensional coordinate plane, which passes through origin or are Coincident, represents proportional relationship.
1. 2 x + 3 y= 5
2. 4 x + 6 y =10
Line 2 = 2 × Line 1
2. y= k x is equation of any line passing through origin, where k is constant of proportionality between x coordinate and y coordinate.
Answer:
A 15
Step-by-step explanation: