3 years ago

What are some characteristics of a good math explanation?

2 answers:

4 0

1. You should understand what about the question and what is the meaning or purpose of it
2. You should find relationships between question and topic
3. You should apply what do you know

ryzh [129]3 years ago

3 0

Visual really helps when learning.

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A computer store buys a computer system at a cost of $370.80. Then selling price was first at $618, but then the store advertise

Charra [1.4K]

Answer:

The answer is 494.40$

Step-by-step explanation:

618*80=49440

49440/100=494.40

3 0

3 years ago

Through [0, -7/5] and perpendicular to 3x-2y=6

Taya2010 [7]

Find a line going through the point
(0, -7/5) and perpendicular to the equation 3x - 2y = 6.

3x - 2y = 6

-2y = -3x + 6

y = (3/2)x - 3

The slope of the equation we seek must be the negative reciprocal of (3/2), which is -2/3.

So, m = -2/3

Use the point-slope formula. See the picture.