Answer:
About 12 minutes
Step-by-step explanation:
2/3 = 0.666666667
0.67/1 = 8 min/x min
Cross multiply:
8•1=8
8 divided by 0.6666667 = 11.9999994
so the equation for slope is y2-y1/x2-x2
so this would be -4-10/-5-0 which equals -14/-5 which is the same thing as 14/5
so the answer is 14/5 or if its mixed then 2 4/5
Hope this helps!
C) The 2 triangles are similar , then we can write:
5x/45 = 20/36 . Cross multiplication:
5x*36 = 45*20
180x = 900 and x = 900/180 , x = 5 (and 5x = 25)
d) Remember the proportionality theorem (or Thales')
You can write the following proportion:
GH/HJ = KL/LM
8/6 = 10/x . Cross multiplication:
8x = 60 and x = 60/8 , x = 7.5
Answer:
25 degrees
Step-by-step explanation:
In the picture attached, the lines and the angles are shown. There we can see that:
85° + 2x° + (x-10)° = 180°
75 + 3x = 180
x = (180 - 75)/3
x = 35°
∠3 and ∠(x-10)° are alternate interior angles, therefore they are congruent, so:
∠3 = x - 10
∠3 = 35 - 10
∠3 = 25°