x travels 150 km in 12 days and y travels 87 km in 9 days. Find the ratios of their speed.
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Answer:
1.3
Step-by-step explanation:
speed of x = 150/12 =12.5 km/day
speed of y = 87/9 = 9.67/km/day
ratio of their speed is 1.2926 approximately 1.3
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Answered by
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Answer:
Step-by-step explanation:
let the speed of the x travels and y travels be a and b respectively
the formula of the speed = distance / time
LET FIRST CONVERT THE DAYS INTO HOURS
1 DAY = 24 HOURS
THEREFORE
12 DAYS = 12 x 24 = 288HRS
9 DAYS = 9 x 24 = 216 HOURS
SPEED = DISTANCE / TIME
THEREFORE THE SPEED OF BOTH
a/b = (150x 288) / (87 x 216)
a/b = 43200 / 18792
The ratio is not in lowest terms so we found an equivalent ratio by simplifying.
Solution:
We can simplify the ratio 43200 : 18792 by dividing both terms by the greatest common factor (GCF).
The GCF of 43200 and 18792 is 216.
Divide both terms by 216.
43200 ÷ 216 = 200
18792 ÷ 216 = 87
Therefore:
43200 : 18792 = 200 : 87
HENCE THE RATIO IS 200 : 87
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