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Arada [10]
3 years ago
12

An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triang

le is x. Another side is 13 more than three times the length of the bottom of the triangle. The last side is 11 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.
Mathematics
1 answer:
Fed [463]3 years ago
4 0

Answer:

나는 모른다

Step-by-step explanation:

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Which of the following is a key property of the linear parent function
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It is definitely the letter B because of the liner parent function
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3+7+11+15+19+23+27<br>1.t1=<br>s1=<br>express t1 in terms of s1​
icang [17]
So it would be 3s + 7s + 11s + 15s + 19s + 23s + 27s. Hope this helps
8 0
2 years ago
Evaluate 2(5 + x2) + y if x = 3 and y = 2
photoshop1234 [79]

Answer:

26

Step-by-step explanation:

8 0
3 years ago
A system of linear equations has been graphed in the diagram. determine a reasonable solution for the system of equations.
Grace [21]

Answer:

(1,-1)

Step-by-step explanation:

The solution to a system of equation means the x and y values if we were to solve both equations (of lines) simultaneously.

That is also known as the intersecting points.

The top-right part is known as the 1st Quadrant in a coordinate system.

Top-left is 2nd Quadrant.

Bottom left is 3rd Quadrant.

Bottom right is 4th Quadrant.

The values of x and y (positive or negative) of each quadrant is shown below:

  • Quadrant 1: x +ve, y +ve
  • Quadrant 2: x -ve, y +ve
  • Quadrant 3: x -ve, y -ve
  • Quadrant 4: x +ve, y -ve

The intersection point (solution) of the 2 lines shown is in the 4th quadrant, which has x values positive and y values negative.

From the answer choices, we see that 3rd answer choice goes with this -- (1,-1), so this is the correct choice.

4 0
3 years ago
Roberto rowed 20 miles downstream in 2.5 hours. The trip back, however, took him 5 hours. Find the rate that Roberto rows in sti
almond37 [142]

Answer:

<em>Roberto's speed in still water is 6 miles/hour and the river speed is 2 miles/hour</em>

Step-by-step explanation:

<u>Relative Speed</u>

When a body is moving at a constant speed v, the distance traveled in a time t is:

d=v.t

When Roberto rows downstream, his speed in still water is added to the speed of the water, making it easier to travel the required distance.

When Roberto rows upstream, his speed in still water is affected by the speed of the water, both are subtracted and the required distance is covered in more time.

Let's call

x = Roberto's rowing speed in still water

y = Speed of the river current

The speed when rowing downstream is x+y, thus the distance traveled is

d=(x+y).t_1

Where t1=2.5 hours. Substituting values:

20=(x+y)*2.5

Rearranging, we find the downstream equation:

2.5x+2.5y=20\qquad[1]

The speed when rowing upstream is x-y, and the distance traveled is

d=(x-y).t_2

Where t2=5 hours. Substituting values:

20=(x-y)*5

Rearranging, we find the upstream equation:

5x-5y=20\qquad[2]

Multiplying [1] by 2:

5x+5y=40

Adding this equation to [2]:

10x=60

Solving:

x=60/10=6

Dividing [2] by 5:

x-y=4

Solving for y

y=x-4=6-4=2

Thus, Roberto's speed in still water is 6 miles/hour and the river speed is 2 miles/hour

3 0
3 years ago
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