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scoundrel [369]
2 years ago
10

Which expression could represent a rational number? A. -b B. a + b C. ab D. b^2

Mathematics
1 answer:
leva [86]2 years ago
4 0

The answer for the following question is A) -b

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a ski chalet offers 2 weekend packages. one package provides 2 nights and 3 meals for$280. the other provides 2 nights and 5 mea
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<span> <span>1st</span></span><span> formula 2n + 3m = 280
</span><span><span>
</span><span>2nd</span></span><span> formula 2n + 5m = 320
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</span><span>rearrange 1st</span> formula to equal n:</span>

    <span><span>2n = -3m + 280
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</span><span><span>
</span><span>rearrange 2nd</span> formula to equal n:</span>

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</span>-3/2m + 140 = -5/2m + 160 </span>

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</span><span>
</span>

<span>Now place 20 into the very 1st</span><span><span> equation in place of the letter m
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</span><span><span>
</span>so it costs $110 per night, $20 per meal</span>


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Answer:

Step-by-step explanation:

c/16

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2 years ago
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