All categories

3 years ago

-0.2x = 1.6 what does x equal

Mathematics

2 answers:

Colt1911 [192]3 years ago

4 0

Divide both sides of the equation by -0.2
x=-8

Sonbull [250]3 years ago

3 0

-0,2x = 1,6 *(-1)
0,2x = -1,6
x = -1,6 / 0,2
x = -16/2
x = -8

You might be interested in

What's the s in 9=s/3??

stira [4]

Answer:

27 =s

Step-by-step explanation:

9=s/3

We want to isolate s, so we will multiply by 3 on each side

9*3 = s/3 *3

27 =s

7 0

3 years ago

Read 2 more answers

Determine how many solutions each equation has without using inverse operations. Explain your reasoning for each.

GuDViN [60]

Answer:

an infinite number

Step-by-step explanation:

The left side of the equation is a restatement of the right side of the equation. It is true for all values of x. There are an infinite number of solutions.

7 0

3 years ago

Please Help!! I will give brainliest<br><br> The question is attached below

Rina8888 [55]

Answer:

Step-by-step explanation:

P(x) = $\frac{2}{3x-1}$

Q(x) = $\frac{6}{-3x+2}$

P(x) × Q(x) = $\frac{2}{3x-1}\times \frac{6}{-3x+2}$

= $\frac{2\times 6}{(3x-1)(-3x+2)}$

= $\frac{12}{(3x-1)(-3x+2)}$

P(x) ÷ Q(x) = $\frac{2}{(3x-1)}$ ÷ $\frac{6}{(-3x+2)}$

= $\frac{2}{(3x-1)}\times \frac{(-3x+2)}{6}$

= $\frac{(-3x+2)}{3(3x-1)}$

5 0

3 years ago

A radioactive substance decays exponentially. A scientist begins with 190 milligrams of a radioactive

worty [1.4K]

Answer: 65.1 (mg)

Step-by-step explanation:

$y=190*e^{-a*t}\\\\Calculate\ a:\\\\t=33,y=95(mg)\\\\190*e^{-a*33}=95\\\\e^{-a*33}=0.5\\\\-a*33=ln(0.5)\\\\a=\dfrac{ln(\dfrac{1}{2}) }{-33} \\\\a=0,02100... \approx{0.021}\\\\If\ t=51\ h, y=190*e^{-0.02100*51}=65.09167...\approx{65.1}$

6 0

3 years ago

Help multiple choice

Softa [21]

Answer:

the first one

Step-by-step explanation:

3 0

3 years ago