To find a unit rate to a proportional, you simply divide y and x. 18÷4=4.5
1/2x = 2x+14
-2x -2x
-1.5x = 14
-1.5 -1.5
x=93/10
Phone card = $20
You need to minus 17.92 from 20 = $2.08
$2.08 / 0.13 = how many minutes
= 16
Answer:
Step-by-step explanation:
The area of a triangle is:
A=05*b*h
b= base = x
h = height = x-12
A = (1/2)(x)(x-12)