3 years ago

A necklace is bought for $34 and sold for $38.25. show that the percentage profit is 12.5%

Mathematics

1 answer:

Goryan [66]3 years ago

6 0

The answer is 38.25 thank me later

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mrs_skeptik [129]

Answer:

b = 4,

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Step-by-step explanation:

We can see the line intercepts the x-axis in (-3,0) and the y-axis in (0,4). So, using the fact that the line equation in the slope-intercept form is:

$y = mx+b$

We can substitute the points we know:

→ (0,4):

$y = mx+b\\\\4 = m\cdot0+b\\\\4 = 0+b\\\\\boxed{b=4}$

→ (-3,0):

$y = mx+b\\\\0 = -3m + 4\\\\3m = 4\\\\\boxed{m = \dfrac{4}{3}}$

So, the line equation in form requested is:

$\boxed{y=\dfrac{4}{3}x+4}$

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