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mixer [17]
1 year ago
8

Please I need help please someone help me.

Mathematics
1 answer:
Dvinal [7]1 year ago
7 0

Answer:

See attached image.

Step-by-step explanation:

See attached image.

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Shoe Boxes A department store is selling its plastic shoe boxes for $1.50 off the
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T=4(r-1.5)

4(3.59-1.5)=t= 8.36 dolla

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Use a proportion to convert the measurement.<br> 10 yards =_______meters
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9.144 meters are in 10 yards.

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Find the equation of the line perpendicular to the<br> given line through the point (1,9). y=1/3x+5
Ivan

Slope-intercept form:  y = mx + b

(m is the slope, b is the y-intercept or the y value when x = 0 --> (0, y) or the point where the line crosses through the y-axis)

For lines to be perpendicular, their slopes have to be the negative reciprocal of each other. (Basically flip the sign +/- and the fraction[switch the numerator and the denominator])

For example:

Slope = \frac{1}{3}

Perpendicular line's slope = -\frac{3}{1}  or  -3

Slope = -2 or -\frac{2}{1}

Perpendicular line's slope = \frac{1}{2}

y=\frac{1}{3} x+5    The given line's slope is \frac{1}{3}, so the perpendicular line's slope is -3. Now that you know the slope, substitute/plug it into the equation:

y = mx + b

y = -3x + b    To find b, plug in the point (1, 9) and isolate/get the variable "b" by itself in the equation

9 = -3(1) + b      Add 3 on both sides to get "b" by itself

9 + 3 = -3 + 3 + b

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Two classmates, Annie and Whitney, plan to meet in the computer lab to type up their research papers. Annie can type at a speed
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The page count will be 10 when the two students will reach the same count.

Step-by-step explanation:

Given,

Typing speed of Annie = 3 pages per hour

Pages already typed by Annie = 4

Let,

x be the number of hours.

y be the total pages typed.

y = 3x+4     Eqn 1

Typing speed of Whitney = 1 page per hour

Pages already types by Whitney = 8

y = 1x+8    Eqn 2

For same number of pages;

Eqn 1 = Eqn 2

3x+4=1x+8\\3x-1x=8-4\\2x=4

Dividing both sides by 2

\frac{2x}{2}=\frac{4}{2}\\x=2

Putting x=2 in Eqn 1

y=3(2)+4\\y=6+4\\y=10

Putting x=2 in Eqn 2

y=2+8\\y=10

The page count will be 10 when the two students will reach the same count.

Keywords: linear equation, addition

Learn more about linear equations at:

  • brainly.com/question/11018983
  • brainly.com/question/11145277

#LearnwithBrainly

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