3 years ago

Please solve will give brainliest

Mathematics

1 answer:

Over [174]3 years ago

4 0

Answer: 12

Step-by-step explanation: Since 11 is ruled out, answer is 12 people

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timurjin [86]

Answer:

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2 years ago

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Does X equal 8 or 9 or 10

BigorU [14]

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3 years ago

Dave walked to his friend's house at a rate of 4 mph and returned back biking at a rate of 10 mph. If it took him 18 minutes lon

katrin [286]

Answer:

4 miles

Step-by-step explanation:

Walking:

Distance = d miles

Rate = 4 mph

Time = t hours

$d=4\cdot t$

Biking:

Distance = d miles

Rate = 10 mph

Time $=t-\dfrac{18}{60}=t-0.3$ hours (convert minutes to hours)

$d=10\cdot (t-0.3)$

Hence,

$4t=10(t-0.3)\\ \\4t=10t-3\\ \\4t-10t=-3\\ \\-6t =-3\\ \\6t=3\\ \\t=\dfrac{3}{6}=\dfrac{1}{2}=0.5\ hour$

Therefore, the distance to friend's house is

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and the total distance of the round trip is

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3 years ago

192 is what percent of 60

Alina [70]

Answer:

320%

Step-by-step explanation:

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3 years ago

Find the ratio 12:18

Colt1911 [192]

Answer:

2/3

Step-by-step explanation:

Ratio means division, so it's 12/18 / 6/6 = 2/3

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3 years ago

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