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Elena-2011 [213]
3 years ago
14

One week, Isabelle bought 2 bags of apples and 3 bags of oranges. The next week, she bought 1 bag of apples and 2 bags of orange

s. If a represents the cost of each bag of apples and r represents the cost of each bag of oranges, which expression could Isabelle use to calculate the difference between the amounts she spent each week?
Mathematics
2 answers:
Alinara [238K]3 years ago
5 0

Answer:

-a-r OR a+r

Step-by-step explanation:


<u>First week cost of Isabelle:</u>

2 bags of apples at a price of a each, so total cost is 2a

3 bags of oranges at a price of r each, so total cost is 3r

Sum of these two: 2a+3r


<u>Second week cost of Isabelle:</u>

1 bag of apple at a price of a each, so total cost is a

2 bags of oranges at a price of r each, so total cost is 2r

Sum of these two: a+2r


<u>Depending on the price of bags of apples and oranges, the second week can cost more, or the first week's total could be more.</u>


  • <em>If 2nd weeks total is more than 1st week's total:</em>

The difference is 2nd week's total minus first week's total:

(a+2r)-(2a+3r)\\=-a-r

  • <em>If 1st weeks total is more than 2nd week's total:</em>

The difference is 1st week's total minus second week's total:

(2a+3r)-(a+2r)\\=a+r


kenny6666 [7]3 years ago
4 0

Answer: D (2a+3r)-(a +2r)

Step-by-step explanation:

Right in edge 2020

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8 0
3 years ago
Maria has added 2 liters of pure water to 8 liters of a 48% sugar syrup. What is the concentration of the resulting solution?
amm1812
We know that
2 liters of pure water = 0 % of sugar 
8 liters of syrup = 48% of sugar

Water = (2 liters x 0%) = 0 total sugar liters
Syrup = (8 liters x 48%) = 3.84 total sugar liters
Total liter mix =8+2-----> 10 liters

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8 0
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Andrew [12]

Answer:

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Step-by-step explanation:

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3(-9.1) = -27.3

-17.6 + (-27.3) = -44.9

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7 0
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Answer:

14

Step-by-step explanation:

(-2) + (-15) - (-3)​

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~Subtract

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-14

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