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Galina-37 [17]
2 years ago
7

Matias stepmother uses 30% off coupon to buy the ingredients for huevos rancheros she spends $28

Mathematics
2 answers:
fredd [130]2 years ago
8 0
The original total of the ingredients was 40 dollars
lina2011 [118]2 years ago
8 0

Answer:

$40

Step-by-step explanation:

To determine the regular price r of the ingredients before the discount, we have to consider that $28 represents 70% of the regular price as this amount has a 30% discount and with that, find the price that represents 100%:

$28 → 70%

 r    ← 100%

r=($28*100%)/70%= $40

The regular price r of the ingredients before the discount is $40.

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Step-by-step explanation:

For this case the population represent all the professional athletes in the researcher city and we can assume that the sample size for tis population is N =982 and represent all the individuals of interest for the study and the parameter of interest is the proportion of athletes who believe that the enforcement of safety measures needs to be completely overhauled .

In order to estimate te parameters of the population the researcher select a sample of 400 professional athletes and just 86 of them returns the questionnaire sent. So then the real sample is the n =86 people who return the info, because the other people are part of the non response rate, and from this sample she found that the proportion of athletes who believe that the enforcement of safety measures needs to be completely overhauled is .

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Adriana writes the equation y = 2x + 4 to represent a line on a graph. Henry writes an equation that has a y-intercept that is 1
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