3 years ago

8x – 3y = 1 –2x + 3y = 11 Solve a Linear System by Elimination

Mathematics

1 answer:

alexdok [17]3 years ago

8 0

I think it’s x= 2 but i would check that

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Step-by-step explanation:

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3 years ago

A population of insects grows exponentially, as shown in the table. Suppose the increase in population continues at the same rat

oksano4ka [1.4K]

Answer-

The insect population at the end of week 11 is 1730.

Solution-

A population of insects grows exponentially.

The general form of exponential function is,

$y=ab^x$

Where,

a, b are constants.

Putting the data given in the table, in the the equation in order to get the values of a, b

At (0, 20)

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At (1, 30)

$\Rightarrow 30=20b^1$

$\Rightarrow 20b=30$

$\Rightarrow b=\dfrac{30}{20}$

$\Rightarrow b=\dfrac{3}{2}$

Now the equation becomes,

$y=20(\frac{3}{2})^x$

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$y=20(\frac{3}{2})^{11}$

$=1729.95 \approx 1730$

8 0

4 years ago

Read 2 more answers

Which is a solution to (x - 2)(x + 10) = 13?

vekshin1

Answer:

The first one x =3

Step-by-step explanation:

3-2 = 1

3 +10 = 13

1*13 =13

7 0

3 years ago

Read 2 more answers