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3 years ago

Solve it in elimination method 4x+3y=10

Mathematics

1 answer:

zhenek [66]3 years ago

6 0

There is another equation to solve it simultaneously

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can someone help me, Just the answer don’t worry about explaining everything, Im really bad on Math :(

Strike441 [17]

Answer:

a. -2 b. -2 c. -1 d. 4 e. -3 f. 0

Step-by-step explanation:

The average rate of change formula is:

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}}$

We need to find the rate of change for x = -3 to x = -2 so we look on the graph to find y.

At x = -3 it look like y = 0 so

$x_{1} = -3$

$y_{1} = 0$

At x = -2 it looks like y = 2

$x_{2} = -2$

$y_{2} = 2$

Now we can just plug everything in to the rate of change formula.

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{2- 0}{-3-(-2)} = \frac{2- 0}{-3+2} = \frac{2}{-1}$ = -2

So for a. our rate of chage for the given interval is -2

Now that you have the formula we don't need to explain each time.

$x_{1} =$ -2

$y_{1} =$ 2

$x_{2} =$ 1

$y_{2} =$ - 4

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{-4- 2}{1-(-2)} = \frac{-4-2}{1+2} = \frac{-6}{3}$ = -2

$x_{1} =$ 0

$y_{1} =$ -3

$x_{2} =$ 1

$y_{2} =$ - 4

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{-4-(-3)}{1-0} = \frac{-4 + 3}{1-0} = \frac{-1}{1}$ = -1

$x_{1} =$ 1

$y_{1} =$ -4

$x_{2} =$ 2

$y_{2} =$ 0

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{0 - (-4)}{2-1} = \frac{0 + 4}{2-1} = \frac{4}{1}$ = 4

$x_{1} =$ -1

$y_{1} =$ 0

$x_{2} =$ 0

$y_{2} =$ -3

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{-3- 0}{0-(-1)} = \frac{-3- 0}{0+1} = \frac{-3}{1}$ = -3

$x_{1} =$ -1

$y_{1} =$ 0

$x_{2} =$ 2

$y_{2} =$ 0

$\frac{y_{2}- y_{1}}{x_{2}-x_{1}} = \frac{0- 0}{2-(-1)} = \frac{0- 0}{2+1} = \frac{0}{3}$ = 0

4 0

3 years ago

A number of b divided by -3 is greater than or equal to 6

Kay [80]

Answer: b ≤ -18

<u>Step-by-step explanation:</u>

Isolate the variable by multiplying both sides by -3. Remember that when you multiply or divide by a negativem the symbol flips.

$\dfrac{b}{-3}\geq6\\\\\\\dfrac{b}{-3}(-3)\geq6(-3)\\\\\\\large\boxed{b\leq-18}$

3 0

4 years ago

Can someone pls pls plz help

Kipish [7]

Answer:

About 5× more

Step-by-step explanation:

9,460,800÷1,861,440=

5.0825167612

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3 years ago

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muminat

C

Hope it helps!!!!!!

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3 years ago

Rohan used the model below to show

shtirl [24]

Answer:

3 groups of 10 not 4 and 7 ones

Step-by-step explanation:

trust

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3 years ago

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Solve it in elimination method 4x+3y=10​

Solve it in elimination method 4x+3y=10