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Luba_88 [7]
3 years ago
10

A taco stand sells tacos for $3.25 each the stands expenses for the day are $210. define your variables and write an inequality

to represent the amount of taco they need to sell per day to make a profit, and then solve the inequality. provide your conclusion as a complete sentence.
Mathematics
1 answer:
iogann1982 [59]3 years ago
4 0
If we're going to use an inequality to solve this, then we'd probably be saying that 3.25 x ? >210. The 3.25 is the selling price per taco and the ? is the number of tacos that you sell. According to the equation, the number of tacos times the selling price has to be greater than 210, which are the expenses, in order to gain a profit. If we solve this, we simply divide 210 by 3.25. We will get an answer of 65. So we can conclude that if the taco business wants to have a profit, then they have to sell more than 65 tacos so that they can be able to cover their expenses. 
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Problem 2) Runner B has the smallest period

Problem 3) The sound propagates faster via a solid than via air, then the sound of the train will arrive faster via the rails.

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The frequency of the football player is 160 heartbeats per minute.

The period is (using the equation you showed above):

Period = \frac{1}{frequency} = \frac{1}{160} \,minutes= 0.00625\,\,minutes = 0.375\,\,seconds

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then the period is: 0.3 minutes (does one loop in 0.3 minutes)

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8 0
3 years ago
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Standard deviation, s = [√Σ(x - xbar) / n-1]

Using calculator, s = 3996.55

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P(x < 27000) = P(Z < - 3.049) = 0.0011518

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