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3 years ago

Please help me fast

Mathematics

1 answer:

My name is Ann [436]3 years ago

7 0

Step-by-step explanation:

5-(-2)

5+2 (a minus and a minus together gives a plus)

9+ (-2)

9-2

=7 (a plus and a minus gives a minus)

Yes it will give you the same answer as a minus and a minus together gives a plus and a plus and a minus gives a minus

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Answer:

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A manufacturer of bicycles has determined that 550 bikes per month will be sold at a price of $250. At a price of $150, it is es

iogann1982 [59]

750 bikes would be sold for $350

Let x represent the number of bikes sold per month and y represent the price.

550 bikes are sold at a price of $250, this can be represented by (550, 250). Also, 750 bikes is sold at a price of $150, hence it is represented by (750, 150)

A linear function is represented by:

y = mx + b

m is the slope, b is the y intercept.

Therefore the function is:

$y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-250=\frac{150-250}{750-550} (x-550)\\\\y=\frac{1}{2}x-25$

The number of bikes sold for $350 is:

350 = (1/2)x - 25

x = 750

Therefore 750 bikes would be sold for $350

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3 years ago

Josie bought four lollipops for 65 cents each. She paid with a five-dollar bill. How many cents will she get back?

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Step-by-step explanation:

Given that,

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As we know

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Answer:

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The answer is (x - 8)^2 + (y - 0)^2 = 3

or (x - 8)^2 + y^2 = 3.

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