2 years ago

Equivalent ratio of 64:60

Mathematics

2 answers:

Snowcat [4.5K]2 years ago

5 0

An equivalent ratio of 64:60 is 16:15.

Sonja [21]2 years ago

5 0

To get an equivalent ratio, you are going to simplify it like you would a fraction. An equivalent ratio would be 32:30. Then, just keep dividing both sides by the same number until both sides can't be divided by the same number. i.e. 9:6 -> 3:2 Both sides were divided by three.

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<h2>>> Answer </h2>

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3 years ago

The mean number of words per minute (WPM) typed by a speed typist is 149 with a standard deviation of 14 WPM. What is the probab

Troyanec [42]

Answer:

78.81%

Step-by-step explanation:

We are given;

Population mean; μ = 149

Sample mean; x¯ = 147.8

Sample size; n = 88

standard deviation; σ = 14

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z = (x¯ - μ)/(σ/√n)

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