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2 years ago

9

About a fifth of the potato crop was ruined by a flood. Another fifth of the undamaged potatoes spoiled while being hauled to ma

rket. How much of the original crop could the farmer sell at the produce market?
A. 2/5
B. 16/25
C. 3/5
D. 4/5

1 answer:

Lady bird [3.3K]2 years ago

8 0

The answer would be c. 3/5

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B = g + 12
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Answer:

Part 1) $9x-7y=-25$

Part 2) $2x-y=2$

Part 3) $x+8y=22$

Part 4) $x+8y=35$

Part 5) $3x-4y=2$

Part 6) $10x+6y=39$

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Part 8)

case A) The equation of the diagonal AC is $x+y=0$

case B) The equation of the diagonal BD is $x-y=0$

Step-by-step explanation:

Part 1)

step 1

Find the midpoint

The formula to calculate the midpoint between two points is equal to

$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

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step 3

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where

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Part 2)

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Find the midpoint

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$M=(\frac{x1+x2}{2},\frac{y1+y2}{2})$

substitute the values

$M=(\frac{1+5}{2},\frac{0-2}{2})$

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step 2

Find the slope

The slope between two points is equal to

$m=\frac{-2-0}{5-1}=-\frac{1}{2}$

step 3

we know that

If two lines are perpendicular, then the product of their slopes is equal to -1

Find the slope of the line perpendicular to the segment joining the given points

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therefore

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step 4

The equation of the line into point slope form is equal to

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we have

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Remember that the equation of the line into standard form is equal to

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step 1

Find the midpoint AB

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step 2

Find the midpoint BC

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$M2=(2,2.5)$

step 3

Find the slope M1M2

The slope between two points is equal to

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The equation of the line into point slope form is equal to

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we have

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step 5

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step 3

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