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Gennadij [26K]
3 years ago
10

The half-life of a radioactive kind of antimony is 60 days. If you start with 280 grams of it,

Mathematics
1 answer:
Fynjy0 [20]3 years ago
8 0

Answer:

Step-by-step explanation:

here

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Please give a explanation :)<br> i will mark as brainliest!!
Fynjy0 [20]

Answer:

x=12 y=3

Step-by-step explanation:

Since the scale factor is 1:3, that means that the length and width of Q multiplied by 3 gives the corresponding length and width of P.

Similarly, the length and width of P divided by 3 gives the corresponding length and width of Q.

With this, 9/3=3, which is the value of y.

4*3=12, which is the value of x.

5 0
3 years ago
A and b are identical batteries, which is brighter
Elden [556K]
Give better description if they are both identical
3 0
4 years ago
Solve and reduce to lowest terms 4\7 x 5\8
erastovalidia [21]

Answer:

5/14

Step-by-step explanation:

4/7 x 5/8 = 20 /56

Then divide by 4

20/56 x 4/4 = 5 /14

8 0
2 years ago
Which order pair is a solution of this equation. 5x+y=-25
crimeas [40]

Answer:

(-5,0) or (0,-25) is another solution

Step-by-step explanation:

Do you have a list of choices? If not, you could choose random choices for x and y to determine if they are solutions. Start by letting y = 0. We see that x = -5, so (-5, 0) is a solution to this equation. In fact, it represents the x-intercept of this line. Now, let x = 0. We now see that y = -25, so (0, -25) is another solution to the equation of this line. This coordinate pair is the y-intercept of the line. Try using other values of x and y to see if you can come up with other solutions to this equation. 

7 0
3 years ago
Read 2 more answers
D\dx(3x^2)<br> Please answer fast.
Sloan [31]

Answer:

3x

Step-by-step explanation:

\frac{d}{dx} (3x  {}^{2} )

\frac{1}{x} 3 {x}^{2}

3x

7 0
3 years ago
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