All categories

2 years ago

Please help me, because they ask for so many characters in Brainly lol

Mathematics

1 answer:

Andrej [43]2 years ago

4 0

Answer:

$y=3x+5$

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: $y=mx+b$ where m is the slope and b is the y-intercept (the value of y when the line crosses the y-axis)

Given that the slope is 3, we can plug this into y=mx+b as m:

$y=3x+b$

Now, to solve for b, simply plug in the given point:

$-7=3(-4)+b\\-7=-12+b\\b=5$

Therefore, the y-intercept is 5. Plug this back into the equation:

$y=3x+5$

I hope this helps!

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3 years ago

What is the final amount if 468 is increased by 8% followed by a further 9%

bixtya [17]

Answer:

The final amount is 550.93.

Step-by-step explanation:

Here, the given amount is 468.

Now 8% of the given amount is $\frac{8}{100} \times 468 = 37.44$

⇒ 8% of 468 = 37.44

So, the New amount = Initial Amount + 8% increase

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⇒ 9% of 505.44 = 45.4896

So, the Final amount = New Amount + 9% increase

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Hence, final amount is 550.93.

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