Answer
Find out the what is her monthly fixed charge .
To prove
Let us assume that the cost per mintues = x
Let us assume that the monthly charge be = y
As given
n Chatty Cathy’s cell phone plan she pays for minutes used plus a fixed monthly charge.
For 500 minutes she pays $35 total
Than the equation becomes
500x + y = 35
As given
for 1500 minutes used she pays $55 total.
Than the equation becomes
1500x + y = 55
Subtracted 500x + y = 35 from 1500x + y = 55
1500x - 500x + y - y = 55 - 35
1000x = 20
x = $0.02
Put in the 500x + y = 35
500 × 0.02 + y = 35
10 + y = 35
y = 35 - 10
y = $25
Therefore the monthly fixed charge be $25.
Answer:
Slope of line passing through (3,-7) and (-1,1) = -2
Step-by-step explanation:
The slope of a line passing through points (x₁,y₁) and (x₂,y₂) is given by
Here points are given by (3,-7) and (-1,1)
So we have (x₁,y₁) = (3,-7) and (x₂,y₂) = (-1,1)
Slope
Slope of line passing through (3,-7) and (-1,1) = -2
Answer:
Step-by-step explanation:
1) S
2) Line
3) Point
4) All coplanar points equidistant from a given point
5) 3rd one or C
Answer:
1. S
2. Line
I'm not sure about the rest...sorry
Step-by-step explanation:
Answer:
IT'S CORRECT!
Step-by-step explanation:
B. 381 /4 hr
C. 391 /8 hr
D. 383 /4 hr