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3 years ago

12

Dina’s science class weighed 7 identical balls on a scale. The combined weight of the balls was 0.35 kilograms. What was the wei

ght of each ball

1 answer:

navik [9.2K]3 years ago

7 0

The balls are identical, therefore you know that they weigh the same amount.

Take your total weight, 0.35, and divide that by the number of balls you have.

0.35 / 7 = 0.05

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Answer:

A. True

Step-by-step explanation:

The empirical rule in statistics states that:

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So yes, we can state that 5% or less of the data will be more than 2 standard deviations away from the mean. Of course, statistics is not 100% certain, so this rule is not 100% right all the time. Some exceptions might result, but generally speaking, the results should follow the empirical rule.

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3 years ago

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Fynjy0 [20]

Answer:

65 bought 3 or more items.

Step-by-step explanation:

See attached summary. The total purchasing customers was 779 (0.82*950). Use the percentages to calculate calculate the numbers of customers who purchased one and two items (528 and 186). Add those and subtract from the total number of customers who purchased anything (779) , to arrive at the number who bought three or more items. 65 bought three or more items.

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3 years ago

In somalia, city b is 75 kilometers due north of city

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We first approach this problem by forming a diagram. Refer to the attachment.

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ANSWER: The distance between city B and city A is 85.96 kilometers.

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4 years ago