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3 years ago

A football team won 75% of 120 games in a season. How many games is that?

Mathematics

2 answers:

Luba_88 [7]3 years ago

8 0

Answer:

90 games

Step-by-step explanation:

Of the 120 games the football team played, they won 75% of them.

Remember that in mathematics, "of" almost always means to multiply. Here, that means we must multiply 75% by 120:

75% * 120

Remember also that % just means divided by 100, so 75% = 75 / 100. So:

75% * 120 = (75/100) * 120 = 9000/100 = 90 games

Bess [88]3 years ago

7 0

Answer: 90 games
Step by step explanation:

50% of 120 is half of it so that would be 60
10% of 120 is just 12
5% is 6
12x7=70% which is 84
Add 5% which is 6
84+6=90 so they played 90 games

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Answer:

17.1≤x≤23.1

Step-by-step explanation:

The formula for calculating the confidence interval is expressed as;

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x is the mean yield = 20.1

z is the 80% z-score = 1.282

s is the standard deviation = 7.66

n is the sample size = 11

Substitute

CI = 20.1 ± 1.282*7.66/√11

CI = 20.1 ± 1.282*7.66/3.3166

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The idea is to use the tangent line to $f(x)=\sqrt x$ at $x=25$ in order to approximate $f(25.3)=\sqrt{25.3}$ .

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