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3 years ago

The double number line shows how many bananas are needed to make 1 loaf of banana bread.

Mathematics

1 answer:

frutty [35]3 years ago

6 0

Answer:

(1, 2.5) (2, 5) (4, 10)

Step-by-step explanation:

The first blank is 1 because that's how many loaves are made while using the equivalent point on the second number line. Then you just use that same input for the second blank (2). The second blank is just the first one multiplied by 2. For the final blank you want to multiply 4 by the unit rate of bananas: 2.5. The last blank is 10.

PLEASE MARK BRAINLIEST!!!

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How do you round 600 to the nearest hundred?

Svetllana [295]

Answer:

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Step-by-step explanation:

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4 years ago

a restaurant owner bought 4 boxes of disposable cups for $145 , with each box containing 1,656 cups. if he wanted to divvy up th

snow_lady [41]

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3 years ago

What would be a line perpendicular to (2,3) (5,5)?

ladessa [460]

9514 1404 393

Answer:

3x + 2y = 0 or y = -3/2x

Step-by-step explanation:

The relationship between a line and its perpendicular is that their slopes are opposite reciprocals of each other. So, the thing you need to know about the line through the two given points is its slope. That is found using the slope formula:

m = (y2 -y1)/(x2 -x1) . . . . . . where the two give points are (x1, y1) and (x2, y2)

Putting your point coordinates in this formula gives ...

m = (5 -3)/(5 -2) = 2/3

Then the perpendicular line will have a slope that is the opposite reciprocal:

slope of perpendicular = -1/m = -1/(2/3) = -3/2

You have not said whether the perpendicular line must meet any other requirement, so the simplest one we can write is ...

y = mx + b . . . . . m is the slope and b is the y-intercept

y = -3/2x . . . . . . has a y-intercept of 0 (goes through the origin)

Multiplying by 2 and adding 3x gives ...

3x + 2y = 0 . . . . . standard form equation

_____

<em>Comment on the attachment</em>

The geometry program I used to create the attachment wrote the equation of the line through the given points as ...

2x -3y = -5 . . . . . standard form equation

The equation of a perpendicular line can be created from this form by swapping the x- and y-coefficients and negating one of them. Simply swapping the coefficients would give ...

-3x +2y = <something>

In standard form, we want the leading coefficient to be positive, so we can choose to negate the x-coefficient. The <something> can be zero to make the line go through the origin.

3x +2y = 0 . . . . . a perpendicular in standard form

If you need to have the line go through a particular point, you can determine the constant value (on the right of the = sign) by putting the point coordinates in for x and y.

_____

Method summary:

find the slope of the given line
determine its opposite reciprocal to find the slope of the perpendicular line
use that new slope in an appropriate form to have the line go where you want it to go. (Point-Slope Form is often useful)

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3 years ago