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lara [203]
3 years ago
9

There are 8 boys and 12 girls.in miss johnson class. 1/4 of her students was absent how many kids were absent

Advanced Placement (AP)
1 answer:
trasher [3.6K]3 years ago
3 0
5 kids were absent. Think about it; 12 + 8 = 20. 1/4 of 20 is 5 because 20 dived by 4 is 5.
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Bill Board is trying to reduce his sodium intake to an average of 2300 mg.
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Answer:

mean average = 2542.5 mg

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Explanation:

The patient's average  daily intake  of sodium for those 4 days can be calculated by taking the mean average of the sample amounts given over the number of the total days.

mean average = \frac{2150+3005+2700+2315}{4}

mean average = \frac{10170}{4}

mean average = 2542.5 mg

Therefore the patient's average daily intake of sodium for those 4 days = 2542.5 mg

What is the patient’s average daily intake of sodium for those 4 days?

What would his 5th day sodium intake need to be to drop him below an average of 2300 mg

given that mean average = 2300; we can also determine the fifth day sodium intake as follows:

mean average = \frac{2150+3005+2700+2315+y}{5}\\2300 = \frac{2150+3005+2700+2315+y}{5}

2300*5 =2150+3005+2700+2315+y

11500 = 10170 +y

11500-10170 =y

y = 1330 mg

Hence, his sodium intake for the fifth day will be 1330 in order to drop him below an average of 2300 mg

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Answer:

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