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lakkis [162]
3 years ago
8

3x-2y=8 and 0.5x+y=17

Mathematics
1 answer:
levacccp [35]3 years ago
7 0

2y is in the first equation so if you change 0.5x+y=17 to y=17-0.5x and then double it to 2y=34-x, you can  substitute and find x. And then you can find out y.

How to find x:

0.5x+y=17

y=17-0.5x

2y=34-x

3x-2y=8

3x-34-x=8

<u>x=21</u>

How to find y (with previous info.)

x=21

3x-2y=8

3*21-2y=8

63-8=2y

55=2y

<u>27.5=y</u>

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lbvjy [14]

1s = 13m

1 * 3 = 13 * 3

= 3s = 39 m

10 s = 13 * 10 => 130

So, 1) 1s

      2) 3s

      3) 130m

8 0
3 years ago
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A study has demonstrated that the more television a person watches, the lower that person’s level of physical fitness. However,
ad-work [718]

Answer:

Option D

Step-by-step explanation:

The most valid conclusion here is that the fact that running on a treadmill allows for a greater physical fitness with the television watching deterring the effect of the exercise. In as much as he only watches TV when running, it is not enough to conclude that TV can cause less physical fitness for Pablo.

7 0
3 years ago
What is the slope of this line?
kirza4 [7]

Answer:

1/4

Step-by-step explanation:

use 2 points from the graph (-4,5) and (0,6) and  put them in the distance equation.

(y2-y1)

----------

(x2-x1)

6-5

-------

0-(-4)

1/4

3 0
3 years ago
Help please!!!!!!!!!!!!
olga nikolaevna [1]
The answer is D because a proportional relationship on a graph would start on (0,0), so A and B cannot be the right answer. On answer C, the relationship starts as 4x=y but changes, so this cannot be a proportional relationship because the relationship needs to be constant. Answer D is the right answer because the proportional relationship remains constant (1.5x=y).
6 0
3 years ago
A line contains the points (-26, -37) and (32, -61)
Slav-nsk [51]

The slope of line through given points is -12/29

Step-by-step explanation:

Given points are:

(-26, -37) and (32, -61)

Let

(x1,y1) =(-26, -37)

And

(x2,y2) = (32, -61)

Slope (steepness) of a line, denoted by m, is given by the formula

m = \frac{y_2-y_1}{x_2-x_1}

Putting the values

m = \frac{-61-(-37)}{32-(-26)}\\\\=\frac{-61+37}{32+26}\\\\=\frac{-24}{58}\\\\=-\frac{12}{29}

Hence,

The slope of line through given points is -12/29

Keywords: Slope, line segment

Learn more about slope at:

  • brainly.com/question/730852
  • brainly.com/question/7297385

#LearnwithBrainly

5 0
4 years ago
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