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Pani-rosa [81]
3 years ago
14

What is the solution to the system x + y = 5 and 3x - y = 3?

Mathematics
1 answer:
solong [7]3 years ago
7 0
The answer is (2,3)
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I will give brainliest to the best answer to this question: Each year, the Department of Water Works measures the chloride conce
Maslowich

Answer:

The total change that will likely occur in 2 years is =-3\frac{2}{3} mg/L        

Step-by-step explanation:

Given : The first year, they found the chloride concentration changed by -1\frac{3}{5} mg/L .

It is estimated that the chloride concentration will change -2\frac{1}{15} mg/L the next year.

To find : What is the total change that will likely occur in 2 years?

Solution :

The chloride concentration changed by -1\frac{3}{5}=-\farc{8}{5} mg/L in first year.

The chloride concentration will change -2\frac{1}{15}=-\frac{31}{15} mg/L the next year.

The total change that will likely occur in 2 years is

=-\frac{8}{5}+(-\frac{31}{15})

=\frac{-24-31}{15}

=\frac{-55}{15}

=\frac{-11}{3}

In a mixed fraction - =-3\frac{2}{3} mg/L        

4 0
3 years ago
Read 2 more answers
What is the gradient of a line with an equation of 3x-2y-6=0​
Genrish500 [490]

Answer:

Slope <em>m</em> = 3/2

General Formulas and Concepts:

<u>Pre-Algebra</u>

  • Equality Properties

<u>Algebra I</u>

Slope-Intercept Form: y = mx + b

  • m - slope
  • b - y-intercept

Step-by-step explanation:

<u>Step 1: Define Equation</u>

3x - 2y - 6 = 0

<u>Step 2: Rewrite</u>

<em>Find slope-intercept form</em>

  1. Subtract 3x on both sides:                    -2y - 6 = -3x
  2. Add 6 on both sides:                             -2y = -3x + 6
  3. Divide -2 on both sides:                         y = 3/2x - 3

<u>Step 3: Break Function</u>

<em>Identify Parts.</em>

Slope <em>m</em> = 3/2

y-intercept <em>b</em> = -3

6 0
3 years ago
Graph the image of this figure after a dilation with a scale factor of 1/3 centered at the origin.
posledela

Answer:

see attached diagram

Step-by-step explanation:

A dilation with a scale factor of \dfrac{1}{3} centered at the origin has a rule:

(x,y)\mapsto\left(\dfrac{x}{3},\dfrac{y}{3}\right).

Then the image of the triangle ABC is triangle DEF(see attached diagram) with coordinates

  • D\left(\dfrac{-3}{3},\dfrac{3}{3}\right)\Rightarrow D(-1,1);
  • E\left(\dfrac{3}{3},\dfrac{9}{3}\right)\Rightarrow E(1,3);
  • F\left(\dfrac{6}{3},\dfrac{6}{3}\right)\Rightarrow F(2,2).

3 0
3 years ago
Use substitution to solve the following system of equations.<br> y=3x +8<br> 5x+ 2y = 5
Shkiper50 [21]

Answer:

5x+2(3x+8)

5x+6x+16

11x+16

11x=-16

X=16/11

6 0
3 years ago
What 34.1 divided equals 22
Artyom0805 [142]
34.1 ÷ __ = 22
So lets think if we wanna find the missing number we have to divide 34.1 and 22 to get 1.55
So, the final answer is
34.1 ÷ 1.55 = 22
I hope this has helped!
6 0
3 years ago
Read 2 more answers
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