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4 years ago

An explanation would be appreciated! Will mark BRAINLIEST for best answer! #3

Mathematics

1 answer:

Bad White [126]4 years ago

5 0

Answer:8:24

Step-by-step explanation:

So since it is 1:3 and 2 dozen is 24 so 24 divided by 3 = 8 so now it’s 8:24

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A farm raises pigs chickens the farmer has total of 102animals one day he counts the legs of all his animals and realizes he has

Mrac [35]

Answer:

The number of pigs the farmer has is 47

Step-by-step explanation:

Assume that the number of pigs is x and the number of chickens is y

∵ The farmer has 102 animals

∵ The number of pigs is x

∵ The number of chickens is y

→ Add them and equate the sum by 102

∴ x + y = 102 ⇒ (1)

∵ Each pig has 4 legs

∴ The number of legs of all pigs is 4x

∵ Each chicken has 2 legs

∴ The number of legs of all chickens is 2y

∵ He has a total of 298 legs

→ Add 4x and 2y, then equate the sum by 298

∴ 4x + 2y = 298 ⇒ (2)

Now we have a system of equations to solve it

→ Multiply equation (1) by -2 to make the coefficients of y equal in values

and opposite in signs

∵ -2(x) + -2(y) = -2(102)

∴ -2x - 2y = -204 ⇒ (3)

→ Add equations (2) and (3)

∵ (4x + -2x) + (2y + -2y) = (298 + -204)

∴ 2x + 0 = 94

∴ 2x = 94

→ Divide both sides by 2 to find x

∴ x = 47

∴ The number of pigs the farmer has is 47

8 0

3 years ago

Plz help me, what Did I do wrong. Two polygons are similar. The perimeter of the larger polygon is 120 yards and the ratio of th

Sav [38]

Answer:

20 yards

Step-by-step explanation:

You have to take $\frac{1}{6}$ of 120, giving you 20.

3 0

3 years ago

Simplify the expression:<br> -10+-v–2+-9

Ira Lisetskai [31]

-10 + -v - 2 + -9

First, simplify. / Your problem should look like: $-10 - v - 2 - 9$
Second, simplify/subtract. / Your problem should look like: $-v - 21$

Answer: -v - 21

4 0

3 years ago

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A room is 20 feet long.If a couch that is 12 1/3 feet long is to be centered in the room how big of a table can be placed on wit

olchik [2.2K]

20-12 1/3=7 2/3 or 23/3. so there is a total of 23/3 ft available. We then take half of that for each side. 1/2 of 23/3= 1/2*23/3= 23/6

3 0

3 years ago

What is the x-coordinate of the vertex of the parabola whose equation is y = 3x2 + 9x?

inn [45]

Hello :
y = 3x²+9x
= 3(x² + 3x )
= 3 ( x² +2(3/2)x +(3/2)²) -(3/2)²)
= 3((x+3/2)² -9/4)
y = 3 (x+3/2)² -27/4
<span>the x-coordinate of the vertex is : - 3/2</span>

8 0

3 years ago

Read 2 more answers