Probability is (outcome wanted)/(total possible outcomes). Total possible outcome is the whole area of the rectangle. Which is (18)(12)=216. The outcome wanted is just the area of the triangle. (0.5)(2)(5)=5. Now 5/216=0.02
Answer:
the sidewalk speed q = 3km/hr
the tortoise speed p is 1.5 km/hr
Step-by-step explanation:
From the given information:
let the speed of the tortoise be p & the speed of the sidewalk be q
she's been running for 40 minutes (40/60 = 2/3) and that she's travelled 3 kilometres
Thus,
p + q = 
p + q = 9/2
p + q = 4.5 ----- (1)
when returning, she travelled 3km in 2 hours
i.e. -p + q = 3/2
-p + q = 1.5 ----- (2)
Thus, by using the elimination method for equation (1) and (2)
p + q = 4.5 ----- (1)
<u>-p + q = 1.5 ----- (2) </u>
<u> 2q = 6 </u>
q = 6/2
q = 3 km/hr
From equation (1)
p + q = 4.5
p + 3 = 4.5
p = 4.5 - 3
p = 1.5 km/hr
Therefore, the sidewalk speed q = 3km/hr and the tortoise speed p is 1.5 km/hr
Answer:
82.60208 yards 247.80624 ft 2,973.67488 inches (2,973.7 once rounded).
Step-by-step explanation:
Horses run at about 30 mph so looking at this it becomes clear that the time the horse will take to cover 1.408 miles is 1.408/30 = 0.046933 Yards. Using the conversion, 1,760 yd x 0.046933 = 82.60208 yards. Converting this to feet, 82.60208 yd * 3 = 247.80624 ft. Then converting this to inches, 247.80624 * 12 = 2,973.67488 inches (2,973.7 once rounded).
A fun, interesting fact is that the average yard is 72 ft in width, so taking 82.60208 / 72 = 1.147 miles.
<span>-4x-7-3x+4=25 then
-7x -3 = 25
add 3 to both sides
-7x - 3 + 3 = 25 +3
-7x = 28
Divided both sides by (-7)
-7x/-7 = 28/-7
x = -4
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