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marusya05 [52]
3 years ago
8

9 pencils cost $7.74. Which equation would help determine the cost of 6 pencils?

Mathematics
1 answer:
eduard3 years ago
6 0
The answer is A. If 9 pencils cost $7.74, we have to divide the total cost ($7.74) by the number of pencils (9) to obtain the price of 1 pencil. Now that we have the price of 1 pencil, to obtain the cost of 6 of them we simply multiply the result by six.
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Step-by-step explanation:

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(2 1<br> 2<br> -<br> 4<br> -<br> 5<br> ) ÷<br> 3<br> -<br> 4
son4ous [18]

Answer:

63\frac{6}{9}

Step-by-step explanation:

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7 0
3 years ago
3.
Sloan [31]

Answer:

  y = 6x +1

Step-by-step explanation:

To write the slope-intercept form equation for a line, you need to know the slope and the y-intercept. These can be found from their respective formulas.

__

<h3>slope</h3>

The slope of a line between points (x1, y1) and (x2, y2) is given by the formula ...

  m = (y2 -y1)/(x2 -x1)

For points (-1, -5) and (0, 1), the slope is ...

  m = (1 -(-5))/(0 -(-1)) = 6/1

  m = 6

<h3>y-intercept</h3>

The y-intercept is the value of y where the line crosses the y-axis. That axis is where x = 0. There is a formula that can be used to find the y-intercept from the slope and a point on the line:

  b = y -mx . . . . . y-intercept of line with slope m through point (x, y)

However, one of the given points is already the y-intercept: (0, 1). It tells you b=1.

<h3>equation</h3>

The slope-intercept equation is ...

  y = mx +b

  y = 6x +1

8 0
2 years ago
A rectangle is 1/2 ft long and 3/4 ft wide.
Alex17521 [72]
Area = Length * Width
A = 1/2 * 3/4
A = 3/8

In short, Your Answer would be 3/8 Ft^2

Hope this helps!
8 0
3 years ago
Read 2 more answers
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