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marta [7]
3 years ago
11

Use addition to solve the linear system of equations. Include all of your work in your final answer.

Mathematics
1 answer:
love history [14]3 years ago
4 0
We have that
<span>x - y = 4-------> multiply by -1-----> -x+y=-4-----> equation 1
x+ 2y = 4------> equation 2

add equation 1 and equation 2
-x+y=-4
x+2y=4
-----------------
0+3y=0-----> y=0
x+2y=4------> x+0=4------>x=4

the solution is the point (4,0)</span>
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B is the right answer to this question
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the angle of elevation from the tip of the shadow to the top of the tree is 36 degrees. find the distance from the top of the tr
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4 years ago
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Help me out please I’ll send the rest
SVEN [57.7K]

Answer:

x=12°

Step-by-step explanation:

3x+6+48=90

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3x=90-54

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Second part of this question is no solution

7 0
4 years ago
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2. Invasive weed species can grow quickly. One variety grows up to 1.65 ft per day.
Radda [10]

Invasive weed grows at a rate of 0.0011 ft per minute a day

In the above question, it is given as

Invasive weed grows really fast and the rate of its growth is being provided as follows

The rate at which the weed is growing a day is = 1.65 ft

We need to find the, rate at which this weed is growing per minute

So, to do this, we'll find the growth in 1 min

In 24 hours growth is = 1.65 ft

Conversion factors

We know, 1 hour = 60 minutes

In 1 min growth is = \frac{1.65}{24 . 60}

Here, we have multiplied with 60 in the denominator to convert hours into minutes  

After solving the fraction we'll get

Growth in 1 min of the weed = 0.0011 ft

Hence, Invasive weed grows at a rate of 0.0011 ft per minute a day

To learn more about minute here

brainly.com/question/15600126

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