B is your answer.
Because 7 times 8 is 56 and 7 times 3 is 21.
The additive inverse is 2/7....I think
First is to make equations for both sides.
Let x be the number of the miles.
a be the charge of the first company
b be the charge of the second
a=$35+$0.25(x), b=$40+$0.20(x) .
then a=b
Substitute the equations
$35+$0.25(x)=$40+$0.20(x)
$0.25x - $0.20x = $40 - $35
$0.05x = $5
x= $5/$0.05 , cancel out the unit.
x= 100
To justify substitute x to both the equations a and b.
a= 35 + 0.25(x)
a= 35 + 0.25(100)
a= 35 + 25
a= $60
b= 40 + 0.20(x)
b= 40 + 0.20(100)
b= 40 + 20
b= 60
a=b
60=60.
Answer:
#1 parallel
#2 parallel
#3 perpendicular
Step-by-step explanation:
Lines parallel have the same slope 1 and 2 have same slope of -5/3
3 is perpendicular: slope is 3/5 ( slope of any line perpendicular to a line with slope m is negative reciprocal )
Answer:
<em>r</em>=2<em>p</em>
Step-by-step explanation:
If <em>r </em>is ruler and <em>p </em>is pen, ruler equals pen times 2, so its <em>r</em>=2<em>p</em>