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Flura [38]
3 years ago
12

Write an equation to represent the total number of legs on h horses and c chickens if a farmer counts 186 legs between two types

of animals.
Mathematics
1 answer:
Vlada [557]3 years ago
8 0

Answer:

4h + 2c = 186 legs

Step-by-step explanation:

h is the number horses and c is the number of chickens.

We know that 1 horse = 4 legs.

And 1 chicjen = 2 legs

We can write these as:

1H = 4 legs

1C = 2 legs

We are told that a farmer counts 186 legs.  That must be represented by the equations:

4h + 2c = 186 legs

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(B) it would be 9n-10
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The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det
Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

H_0: Mean = 30\\H_a: Mean >30

(Right tailed test)

Sample size = n=250

Sample mean = 30.45

Mean difference =30.45-30=0.45\\

Sample std dev s = 5

Sample std error = \frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163

Test statistic = Mean diff/std error = =\frac{0.45}{0.3163} =1.423

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4 0
3 years ago
How many feet long is the fence ?
grandymaker [24]

Answer:

50 feet long

Step-by-step explanation:

Use the Pythagorean theorem to find the value of the missing side. The pythagoreon theorem only works with right triangles such as this one.

a²+b²=c²

Where a and b are length of legs (sides) of a triangle. And c is the length of the hypotenuse. The hypotenuse is the side across from the right angle.

We know by looking at the image posted in the question, that one leg of the triangle is 14 feet. And another leg is 48 feet. (Length of picnic area) (length of campground)

14²+48²=c²

Simplify

196+2304=2500

Find square root of 2500

√(2500)=50

So 14²+48²=50²

The missing side is 50 feet long. The fence is 50 feet long.

Attached is another example.

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100 meters, 9.69 seconds, usain bolt jamaica
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3. Bobbi bought 4 rolls of
sveta [45]

Answer:

400 x however long those ribbons are

Step-by-step explanation:

1 meter is 100 centimeters, and there are four rolls. so 4x100 equals 400, and you multiply that by the length that you didn't provide.

3 0
2 years ago
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