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adoni [48]
3 years ago
11

Ill give brainliest to whoever helps

Mathematics
1 answer:
Natalija [7]3 years ago
7 0

Answer:4

Step-by-step explanation: First u - 2x from both sides to get x by it self.

leaving u with  x+8

Next u divide both sides by 2 giving u the answer 4

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The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half of its initial m
Dovator [93]
1st half life: 195/2 = 97.5 g
2nd half life: 97.5/2 = 48.75 g
3rd half life: 48.7/2 = 24.375 g
4th half life: 24.375/2 = 12.1875 g
5th half life: 12.1875/2 = 6.09375 g

or you can do
195(2)^(-5) = 6.09375
** rounded to nearest gram = 6 g

4 0
4 years ago
Solve the question: 3(.5y-6)=12​
makvit [3.9K]

Answer:

y = 20.

Step-by-step explanation:

Distribute:

3(0.5y)-3(6)=12

1.5y-18=12

Add 18 to both sides:

1.5y-18+18=12+18

1.5y=30

Solve for y:

\frac{1.5y}{1.5}=\frac{30}{1.5}

y=20

6 0
3 years ago
What is the slope of the line that passes through (-4, 5) and (1, 3)?​
Tasya [4]
M=-2/5 is the answer to this equation
7 0
3 years ago
Kristin and her family left their campsite to take a bike ride. They biked 5 miles west and then 12 miles north. How far are the
pickupchik [31]

Answer:

they are 17 miles away from their campsite.

Step-by-step explanation:

we get the answer by adding the miles traveled north to the miles traveled west, and we get the total number of miles they traveled away from their campsite.

5 + 12 = 17

8 0
3 years ago
Which of the following is the solution to the inequality -5x + 20 < 130?
Masja [62]
The answer is B. x > -22


-5x + 20 < 130

-5x < 130 - 20

-5x < 110

-5x/-5 > 110/-5

x > -22
6 0
3 years ago
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