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DerKrebs [107]
2 years ago
13

Need help in math ASAP

Mathematics
2 answers:
Svetlanka [38]2 years ago
6 0

Answer:

angle a + angle b=180

4x-8+(2x+2)=180

6x-6=180

6x=180+6

x=186/6

{x=31°}

Murrr4er [49]2 years ago
4 0

Answer:

B

Supplementary means they add to make 180 deg, so solve (4x-8)+(2x+2)=180

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The combined height of one for tree and one pine tree is 21 meters. The height of 4 for trees stacked on top of each other is 24
slamgirl [31]

Answer:

The height of the fir tree is <u>9 meters</u> tall and the pine tree is <u>12 meters</u>.

Step-by-step explanation:

Given:

Note :→ there is a mistake it is <u>fir tree</u> not for tree.

The combined height of one fir tree and one pine tree is 21 meters.

The height of 4 fir trees stacked on top of each other is 24 meters taller than one pine tree.

Now, to find how tall are the types of trees.

Let the height of one fir tree bex.

And the height of one pine tree be y.

So, the combined height of one fir tree and one pine tree:

x+y=21.

y=21-x..........( 1 )

Now, as given the height of 4 for trees stacked on top of each other is 24 meters taller than one pine tree:

4x=y+24.

Putting the value of equation (1) in the place of y :

4x=21-x+24

<em>Adding both the sides x we get:</em>

5x=21+24.

5x=45.

<em>Dividing both the sides by 5 we get:</em>

x=9\ meters.

<em>So, the height of one fir tree = 9 meters.</em>

Now, putting the value of x in equation (1) we get:

y=21-9

y=12\ meters.

<em>Thus, the height of one pine tree = 12 meters.</em>

Therefore, the fir tree is 9 meters tall and the pine tree is 12 meters tall.

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2 years ago
Solve each system of equations algebraically.
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(0,0) hope this helps!
6 0
2 years ago
Which expression is equivalent to -36 - 8?
Deffense [45]
-36-8 = -44

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third option
7 0
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A teacher asks his students to write the numbers shown in order from least to greatest. Paul thinks the numberss are already in
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3 years ago
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How to reduce a ratio to lowest terms
aleksley [76]

It is usual to represent ratios in their simplest form so that we are not operating with large numbers. Reducing ratios to their simplest form is directly linked to equivalent fractions.

For example: On a farm there are 4 Bulls and 200 Cows. Write this as a ratio in its simplest form.

Bulls <span>: </span>Cows

4 <span>: </span>200

If we halve the number of bulls then we must halve the number of cows so that the relationship between the bulls and cows stays constant. This gives us:

Bulls <span>: </span>Cows

2 <span>: </span>100

Halving again gives us

1 <span>: </span>50

So the ratio of Bulls to Cows equals 1 : 50. The ratio is now represented in its simplest form.

An example where we have 3 quantities.

On the farm there are 24 ducks, 36 geese and 48 hens.

Ratio of ducks <span>: </span>geese <span>: </span>hens

24 <span>: </span>36 <span>: </span>48

Dividing each quantity by 12 gives us

2 <span>: </span>3 : 4

So the ratio of ducks to geese to hens equals 2 : 3 : 4 which is the simplest form since we can find no further common factor.

7 0
3 years ago
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