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3 years ago

An example how multiplication is assocative

Mathematics

1 answer:

vfiekz [6]3 years ago

8 0

This one may help you.

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A store offers a 15% discount on a freezer chest that was originally priced at $630. If the sales tax rate is 7.8%, how much mus

WINSTONCH [101]

Answer:

$577.27

Step-by-step explanation:

When offered 15% discount, buyer will then pay 100-15=85% of the original price hence the price offered by seller will be

0.85*$630=$535.5

Now this price is subjected to a tax of 7.8%, equivalent to 0.078 hence the buyer pays 1.078 of $535.5

1.078*$535.5=$577.269

Rounded off, this is equivalent to $577.27

8 0

3 years ago

A line segment has endpoints at A(-2, 4) and B(-4, 2). Write an equation in slope-intercept form for a line that bisects this se

AnnyKZ [126]

The equation of the line that bisects the given segment is y = -2x -3.

The given points coordinates;

A(-2, 4), B(-4, 2)

The mid-point of the given coordinate points;

$Mid-point = \frac{x_1 + x_2 }{2} , \ \frac{y_1 + y_2}{2} \\\\Mid-point = \frac{-2 -4}{2} , \ \frac{4+2}{2} \\\\Mid-point = (-3, 3)$

The slope of the given line is calculated as;

y = -2x + 5

slope = -2

The equation of the line that bisects the given coordinate points;

$\frac{y-y_1}{x-x_1} = -2\\\\\frac{y-3}{x-(-3)} = -2\\\\\frac{y-3}{x+3} = -2\\\\y-3 = -2(x+3)\\\\y-3 = -2x -6\\\\y = -2x -3$

Thus, the equation of the line that bisects the given segment is y = -2x -3.

Learn more here:brainly.com/question/15587122

3 0

2 years ago

Anyone know how to do this?

nikdorinn [45]

//////////////////c/////////////////

4 0

3 years ago

What is 25 over 100 equivalent to??

zhenek [66]

25% 1/4 .25 are all equivalent to 25 over 100

7 0

3 years ago

Read 2 more answers

How 152 is shown with blocks

Pie

It will be 1 of the 100block
5 of the tens block and 2 single

4 0

3 years ago

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