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2 years ago

What expression is equivalent to 6+3(n-4)-8+2n

Mathematics

1 answer:

lorasvet [3.4K]2 years ago

4 0

Answer:

Step-by-step explanation:

Comment

Begin by removing the brackets.

6+3(n-4)-8+2n

6 + 3n - 12 - 8 + 2n Collect like terms

3n + 2n + 6 - 12 - 8 Combine

5n - 14

Answer

5n - 14

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Answer:

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Step-by-step explanation:

Given

Sam Tim

х --- f(x) --------------- g(x)

1 --- 80 --------------- 100

2 --- 110 --------------- 120

3 --- 140 --------------- 140

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Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,80)$

$(x_2,y_2) = (4,170)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

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$m = \frac{90}{3}$

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Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

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$y - 80 = 30x - 30$

Make y the subject

$y = 30x - 30 + 80$

$y = 30x +50$

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,100)$

$(x_2,y_2) = (4,160)$

Next, we calculate the slope (m)

$m = \frac{y_2 - y_1}{x_2 - x_1}$

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$y - y_1=m(x-x_1)$

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Make y the subject

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