Answer:
7
Step-by-step explanation:
Since this equation is already in slope intercept form you can see its 7.
The formula: y=mx+b is a formula to identify the slope and y-intercept.
The m indicates the slope and the b indicates the y-intercept.
Answer:
the answer is 63.96
because 20% of 79.95 is 15.99
Let the speed of one rider = x
The speed of the second rider would e 2x ( twice as fast)
The total speed of the two riders would be x + 2x = 3x
Speed = Distance / time
Using the numbers:
3x = 72/3
Simplify:
3x = 24
Divide both sides by 3:
x = 8
The speed of one rider is 8 miles per hour
The speed of the second rider is 2(8) = 16 miles per hour.
$=(a^2-10a)-(b^2+6b) +16$
$=[(a^2-2(5)a+25)-25]-[(b^2+2(3)b+9)-9]+16$
$=(a-5)^2-25-(b+3)^2+9+16$
$=(a-5)^2-(b+3)^2$
