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Pani-rosa [81]
3 years ago
6

Each year, the Department of Water Works measures the chloride concentration level in the water. The first year, they found the

chloride concentration changed by −1 and 3/5 mg/L . It is estimated that the chloride concentration will change −2 and 1/15 mg/L the next year.
What is the total change that will likely occur in 2 years?

Enter your answer as a simplified mixed number in the box.
Mathematics
1 answer:
Elan Coil [88]3 years ago
8 0
I think the answer is 3 1/4
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shusha [124]

Answer:

x = -2

Step-by-step explanation:

The segments described in the question are equidistant (meaning they are the same length). Therefore, using algebraic techniques, we can set these two equal to each other and solve for x.

4x - 8 = 6x - 4 Combine like terms by subtracting 6x from both sides.

-2x - 8 = -4 Combine like terms by adding 8 to both sides.

-2x = 4 Divide by -2 on both sides of the equation.

x = -2

6 0
3 years ago
19.(06.02 LC)
lukranit [14]

Answer:

y = -3x + 7

Step-by-step explanation:

when they are parallel, they always have the same slope.

7 0
3 years ago
what is the mistake in this problem and why is it wrong? 15+(√9•7)÷13 = 15+(3•7)÷3 = 15+(21)÷3 = 36+3 =12
Serggg [28]

[Edit:}

Okay! So after you have 15+(21)÷3, you have to remember PEMDAS.

PEMDAS is the order in which you solve equations.

1. Parentheses: you solve everything in the parentheses first, all while following the rules of PEMDAS

2. Exponents: after you solve the things in the parentheses, you do the exponents.

3. Then you do Multiplication or Division, solving in the order from left to right.

4. After, you do Addition or Subtraction, solving in the order from left to right.

So using PEMDAS, we'll solve 15+(21)÷3.

We do division before addition, so 21/3 is 7.

Then you add 15 to 7 and get 22 as your final answer.

Hope this helps!

7 0
3 years ago
I need help asap please more than one answer
pashok25 [27]

Answer:

A) 8(x+8); 8*x+8*8

B)15y+2

I hope this helps!

3 0
3 years ago
Find the smallest integer value of X that satisfies the inequality of 6X>7
Nastasia [14]

Answer:

  x = 2

Step-by-step explanation:

The solution set can be found by dividing the inequality by the coefficient of x.

  6x > 7

  x > 7/6

The smallest integer greater than 7/6 is 12/6 = 2.

The smallest integer solution is x = 2.

5 0
2 years ago
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