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serious [3.7K]
3 years ago
10

Susan, Chang, and Henry sent a total of 127 text messages over their cell phones during the weekend. Chang sent 3 times as many

messages as Henry. Henry sent 7 fewer messages than Susan. How many messages did they each send?
Mathematics
1 answer:
Ymorist [56]3 years ago
4 0

Answer:

c = 72, h = 24, s = 31

Step-by-step explanation:

You can derive the following equations from the text:

s+c+h=127

c=3h

h=s-7

Solving them yields above answer.

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Applying the percentages, and considering that 70% of the first group drinks at least 2 glasses of water a day, it is found that 0.725 = 72.5% of the team drinks at least 2 glasses of water a day.

The team is divided into two equal groups, hence, each represents 50%.

The <em>percentages </em>associated with drinking at least 2 glasses of water a day is:

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T = 0.7(0.5) + 0.75(0.5) = 0.725

0.725 = 72.5% of the team drinks at least 2 glasses of water a day.

A similar problem is given at brainly.com/question/1517088

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