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3 years ago

Dwayne hikes 60 miles in 3 days. At that rate, how many days does it take him to hike a total of 240 miles

Mathematics

2 answers:

NNADVOKAT [17]3 years ago

7 0

12 days. 60 is a quarter of 240. So, multiply 60 by 4 to get 240.

AVprozaik [17]3 years ago

6 0

Set up proportion 60 miles and 3 days see how many days it takes for 240 miles which is 12 days

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Find the number of 4-digit numbers that contain at least three odd digits.

Marrrta [24]

Answer:

Total number = 3000

Step-by-step explanation:

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Total no. of odd digit numbers = 5

Numbers which aren't odd = 0,2,4,6,8

Total no. which aren't odd = 5

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If all Fours digits are odd:

Total numbers = 5×5×5×5 = 625

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If second digit is not odd and rest three digits are odd:

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Total numbers = 5×5×5×5 = 625

If fourth digit is not odd and rest three digits are odd:

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3 years ago

Can someone check my answers to see if they're correct?

Sati [7]

Answer:

a = 125°

b = 55°

c = 55°

d = 55°

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Step-by-step explanation:

See the attached diagram.

The angles (x + 75)° and (2x + 25)° are the alternate angles and they are equal.

So, x + 75 = 2x + 25

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Hence, (x + 75)° = (50 + 75)° = 125°.

Now, from the given diagram it is clear that

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Answer:

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Step-by-step explanation:

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∵ The equation has no solution the ,

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