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elena-s [515]
3 years ago
9

Elimination 6x-6y=0 -6x-3y=27

Mathematics
1 answer:
azamat3 years ago
5 0

Answer:

x=-3 and y=-3

Step-by-step explanation:

add the two equations, so 6x-6x, -6y-3y, and 0+27 to get -9y=27. y ends up equaling -3. plug negative 3 into the either of the equations and solve for x, which ends up being -3

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A bag contains 8 blue marbles and 6 green marbles.A blue marble is removed and not replaced.Calculate the probability that the s
Solnce55 [7]

Answer:

a. Blue

Step-by-step explanation:

The answer is blue because there are still more blue than green and the ratio is 7:6. So the probability is the second ball removed is a blue ball. Hope this helps :)

7 0
3 years ago
THIS TOO GOD I NEED HELP SO BAD I DONT UNDERSTAND
Zina [86]

Answer:

54.7

Step-by-step explanation:

16.7 + 11 + 11 + 8 + 8 = 54.7

Note

I don't know how you are wrong but I showed my work and I got the same answer which is weird.

8 0
2 years ago
The breakdown of a sample of a chemical compound is represented by the function p(t) = 500 (0.25)^t, where p(t) represents the n
ludmilkaskok [199]

Given:

The function is:

p(t)=500(0.25)^t

Where p(t) represents the number of milligrams of the substance and t represents the time.

To find:

The correct explanation for the number 0.25 and 500 in the given function.

Solution:

The general exponential function is:

y=ab^x           ...(i)

Where, a is the initial value and b is the growth/decay factor. If 0, then decay factor and if b>1, then growth factor.

We have,

p(t)=500(0.25)^t           ...(ii)

On comparing (i) and (ii), we get

a=500, it means initial there are 500 milligrams of the substance.

b=0.25, this value is less than 1, it means the substance is decreasing by a factor of 0.25.

Therefore, 0.25 means the substance is decreasing by a factor of 0.25 and 500 means the initial value of substance is 500 milligram.

3 0
3 years ago
Explain the difference between using the trigonometric ratios (sin, cos, tan) to solve for a
Lemur [1.5K]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
A grocery store sells cheese for $0.48 a pound. What would be the price for 6 pounds of cheese?
nexus9112 [7]

Answer:

$2.88

Step-by-step explanation:

0.48×6=2.88

os the right answer

5 0
3 years ago
Read 2 more answers
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