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Taya2010 [7]
3 years ago
9

Sally is selling strawberries at the farmer’s market. She sells 5 boxes in the morning, and then sells half of the remaining box

es of strawberries by the end of the day. If Sally ended up with 9 boxes of strawberries left at the end of the day, how many boxes did she start with
Mathematics
2 answers:
liraira [26]3 years ago
7 0

Answer:

23

Step-by-step explanation:

I did this backwards.

Since we know that Sally ended up with 9 boxes of strawberries, and sold half of the remaining strawberries, she must've had 18 boxes. Adding the 5 boxes from the beginning gets us 18+5=23

You also could've wrote an equation.

x=boxes of strawberries

x the total amount of boxes in the beginning of the day

x-5 the 5 boxes she sold

(x-5)/2 half of the remaining boxes sold

(x-5)/2=9 the amount left

Vilka [71]3 years ago
5 0

Answer:

23 boxes

Step-by-step explanation:

x=5+9*2

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Which polynomial is equal to  (-3x^2 + 2x - 3) subtracted from  (x^3 - x^2 + 3x)?

<h3><u><em>Answer:</em></u></h3>

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Given that two polynomials are: (-3x^2 + 2x - 3) and (x^3 - x^2 + 3x)

We have to find the result when (-3x^2 + 2x - 3) is subtracted from  (x^3 - x^2 + 3x)

In basic arithmetic operations,

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Similarly,

When (-3x^2 + 2x - 3) is subtracted from  (x^3 - x^2 + 3x) , the result is:

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Let us solve the above expression

<em><u>There are two simple rules to remember: </u></em>

  • When you multiply a negative number by a positive number then the product is always negative.
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So the above expression becomes:

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Removing the brackets we get,

\rightarrow x^3 - x^2 + 3x + 3x^2 -2x + 3

Combining the like terms,

\rightarrow x^3 -x^2 + 3x^2 + 3x - 2x + 3

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