Formula: V = d / t => d = V*t
Name your relevant variables:
minimum speed limit: v
maximmum speed limit V
1) Tony's distance
2*v + 3.5*V = 355 miles
2) Ray's distance
2*v + 3*V = 300 miles
3) Finding v and V
You have a system of two equations each with the two variables.
You can solve that system by subtracting the second equation from the first one:
=> 0.5V = 55 => V = 55 / 0.5 = 110 mph
Now replace that value of V in any of the equations and solve for v
From the second one: 2v + 3V = 300 => 2v = 300 - 3V = 300 - 3(110) = 300 - 330 = - 30 mph
This value of v indicates that the conditions given are not valid. Both speed should be a positive value.
=> Tony's distance is 2*80 + 3.5*110 = 160 +
You can divide 140 by 4 which is 35
so it would be 35 words per minute
and if you want to find out if it works with the 525 word in 15 mintues
you can do 35 ×15 = 525
Answer:
Step-by-step explanation:
Answer: 11
Step-By-Step-Explanation:
Distance formula : sqrt ((x2 - x1)^2 + (y2 - y1)^2
1.) (-4,0).....x1 = -4 and y1 = 0
(4,6)......x2 = 4 and y2 = 6
now sub into the formula...
d = sqrt ((4 - (-4)^2 + (6 - 0)^2)
d = sqrt ((4 + 4)^2 + (6^2))
d = sqrt (8^2 + 6^2)
d = sqrt (64 + 36)
d = sqrt 100
d = 10 <=====
u would use the exact same formula for the rest of these problems
2.) (5,7),(0,-5)......distance is : 13
3.) (2,-1),(1,-4).....distance is : 3.16
4.) (-7,-2),(0,7).....distance = 11.4