→Amount charged by wireless service provider when 'm' messages are sent=$(30+0.10 m)
Amount charged if ' 1 ' messages are sent= $30+0.10×1=$30.10
Amount charged when '2' messages are sent=$30+0.10×2=%30.20
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Amount charged or money you will pay when 'u' messages are sent=$30+0.10×u=$(30+0.10 u)
Answer:
$0.07
Step-by-step explanation:
nails = 3.10/155 = 0.02/piece
screws = 7.65/85 = 0.09/piece
0.09 - 0.02 = 0.07
Answer:
slope = 2
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
x + 2y = - 16 ( subtract x from both sides )
2y = - x - 16 ( divide all terms by 2 )
y = -
x - 8 ← in slope- intercept form
with slope m = - 
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 2