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3 years ago

Solve the system of equations algebraically

Mathematics

1 answer:

EleoNora [17]3 years ago

4 0

Answer:

Step-by-step explanation:

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−29,605 rounded to the nearest hundred is?

Yuki888 [10]

6 is in the hundreds place. Since the number to the right of it (0) is not greater than or equal to 5, then 6 is not rounded up.

Answer: -29,600

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3 years ago

How do I solve this?

Pavlova-9 [17]

I would first make it 5+-2x and so then you would have I5+-2xI * IxI and then you have I5+ (-2*-4)I*I-4I then you have I5+8I*4 then you would have 13*4 and then your answer is 52 :)

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3 years ago

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What is the y-intercept of the equation of the line that is perpendicular to the line y =

Luda [366]

Answer:

$y$ intercept $=10$

line $y=-x+10$

Step-by-step explanation:

Let $y=mx+b$ is the required line.

<u>Slope of perpendicular lines :</u> If $m_{1}$ and $m_{2}$ be slope of two perpendicular lines. Them $m_{1}\times m_{2}=-1$

$y=mx+b$ is perpendicular to $y=x+10$

the slope of $y=x+10$ is $=1$

$m\times 1=-1\\m=-1$

Hence eqn is $y=-x+b$

This equation passes through $(15,-5)$

$-5=-15+b\\b=-5+15\\b=10$

so the line is $y=-x+10$

<u>y-intercept :</u>

Substitute $x=10$

$y=0+10\\y=10$

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3 years ago

Bill drove 871 miles in 13 hours.

wariber [46]

Answer:

536 miles

Step-by-step explanation:

871/13 = 67

67*8 = 536

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At a particular music store, CDs are on sale at $11.00 for the first one purchased and $9.00 for each additional disc purchased.

Mrac [35]

The answer is 7, 7 cds were purchased, hope this helps have a great day!

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3 years ago