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2 years ago

How to subtract negative number from 1

Mathematics

2 answers:

bija089 [108]2 years ago

8 0

To subtract a negative number from one you will need to set it up like this

1- (-x) x equals the negative number you're talking about

so we use the method KCC (keep change change)

So we KEEP the positive one, CHANGE the subtraction sign in to a plus sign "+" then CHANGE the negative number to a positive

lets say the negative number is 2

1-(-2)

1+ (+2)

1+2 = 3

djyliett [7]2 years ago

3 0

when you subtract a negative number from any platitude number the equation changes to addition so you would add the value of the negative number to 1.

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Find Sales Price of 5 gallons of ice-cream:
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Sales price of Fruity Tooty = $6.00
Sales price of Peanut Butter = $5 x 2 = $10.00
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Total Sales Per 5 gallon = $6 + $10 + $10.50 = $26.50

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Find Variable Cost of 5 gallons of ice-cream:
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Variable Cost of Fruit Tooty = $5.25
Variable Cost of Peanut Butter = $4.50 x 2 = $9.00
Variable Cost of Rocky Road = $4 x 2 = $8.00
Total Variable Coast = $5.25 + $9 + $8 = $22.25

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Fixed Cost Given:
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Fixed Cost = $7500

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Define x:
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Let x be the number of 5 gallons that need to be sold to breakeven:

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Find x:
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26.50x = 7500 + 22.25x

26.50x - 22.25x = 7500

4.25x = 7500

x = 7500 ÷ 4.25

x = 1764.7 (Nearest tenth)

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Find the number of gallons of ice-cream needed:
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Total number of 5 gallons needed = 1764.7

Total gallons needed = 1764.7 x 5 =8823.5

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Answer: I sceam needs to sell 8823.5 gallons of ice cream to break even.
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