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ASHA 777 [7]
3 years ago
11

What is the mean, Median, Mode and Range of 8, 10, 3, 9, 12, 4, and 3

Mathematics
1 answer:
raketka [301]3 years ago
7 0
Mean - 7
median - 8
range - 8
mode - 3
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A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?
zalisa [80]

Answer:

5 pigs

Step-by-step explanation:

A farmhouse shelters 16 animals, some are pigs, and some are ducks. Altogether there are 42 legs. How many pigs are there?

Let us represent:

Number of pigs = x

Number of ducks = y

Our system of equations is given as:

A farmhouse shelters 16 animals, some are pigs, and some are ducks.

x + y = 16...... Equation 1

x = 16 - y

Altogether there are 42 legs.

Ducks have 2 legs(feet) , pigs have 4 legs,

4x + 2y = 42..... Equation 2

We substitute

16 - y for x in Equation 2

Hence:

4(16 - y) + 2y = 42

64 - 4y + 2y = 42

Collect like terms

- 4y + 2y = 42 - 64

-2y =- 22

y = -22/-2

y = 11 ducks

Solving for x.

x = 16 - y

x = 16 - 11

x = 5 pigs

Therefore, we have 5 pigs

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3 years ago
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Tracy has a cell phone plan that provides 250 free minutes each month for a flat rate of $29.
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Answer:

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x\leq 250

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idk

Step-by-step explanation:

idk

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