Ok here it is ..........

Mathematics

2 answers:

SIZIF [17.4K]3 years ago

7 0

The answer is y=3x-4

elena-14-01-66 [18.8K]3 years ago

3 0

Answer:

choose option B. - 4

Step-by-step explanation:

Slope intercept form

y - 5 = 3 (x - 3)

y = 3x - 9 + 5

y = 3x - 4

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A young sumo wrestler decided to go on a special diet to gain weight rapidly. He gained weight at a constant rate.

Fittoniya [83]

The wrestler gained 5.20 kilograms per month.

Step-by-step explanation:

Let,

x be the weight gained every month.

y be the original weight before weight gain.

According to given statement;

0.5x+y=80.6 Eqn 1

2x+y=88.4 Eqn 2

3.5x+y=96.2 Eqn 3

Subtracting Eqn 1 from Eqn 2

$(2x+y)-(0.5x+y)=88.4-80.6\\2x+y-0.5x-y=7.8\\1.5x=7.8$

Dividing both sides by 1.5

$\frac{1.5x}{1.5}=\frac{7.8}{1.5}\\x=5.20$

The wrestler gained 5.20 kilograms per month.

Keywords: linear equation, subtraction

Learn more about linear equations at:

#LearnwithBrainly

3 0

3 years ago

Read 2 more answers

Graph the line of the equation 8x/5 - 2y = -8 using its slope and y-intercept

satela [25.4K]

Answer:

$y=\frac{4}{5}x+4$

Step-by-step explanation:

You'll need to get this equation in slope-intercept form by solving for y. I do a little extra here to get it in the correct form, but I think it's pretty clear. Let me know if I need to clarify.

$\\\\\frac{8x}{5}-2y=-8\\\\-2y=-\frac{8x}{5}-8\\\\2y=\frac{8x}{5}+8\\\\y=\frac{4}{5}x+4$

Once it's in slope-intercept form, both the slope and the y-intercept are readily available so you can easily graph it. I graphed both of them in the attached image so you can see that they are the same line.