A) 750-120=630 ft. His elevation is 630 ft. above sea level now.
b) 420 ft/hour. 60 minutes=1 hour. 420 ft/60=7 ft/minute. The average change in elevation is 7 ft/minute.
c) 630ft/7ft=90 minutes. If he starts at 630 ft and descends at a speed of 7 ft/min, it will take him 90 minutes. 90 minutes=1 1/2 hours. 1 1/2 h+4 h=5 1/2 hours. If he's starts his descent at 4 pm, he will reach sea level at 5:30 p.m.
Step-by-step explanation:
earbuds
we have a 1in : 0.2in scale of drawing to reality.
0.2 = 2/10 = 1/5
so, 1in in the drawing is actually 1/5in in reality.
how long are the 4in in the drawing ?
well, 4 times the 1in thing.
4×1/5 = 4/5 = 0.8in long
again the similar triangles
similar triangles means that each pair of corresponding lines (sides, heights, ...) in the triangles follows the same scaling factor for the length.
so, what do I need to multiply the side of the large triangle with to get the corresponding side length of the small triangle ?
27 × x = 9
x = 9/27 = 1/3
and that is the scale factor.
Answer:
y=2x-2
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(8-4)/(5-3)
m=4/2
m=2
y-y1=m(x-x1)
y-4=2(x-3)
y=2x-6+4
y=2x-2
Answer:
288
Step-by-step explanation:
I’m not 100% sure yho