Question

1. debbies house is 8 miles from sues house. sue has ridden 5 miles towards debbies house. what percent of the distance has she ridden? round to the whole percent.
2. a computer company found that 0.5% of their computers had defective keyboards. in a shipment of 400 computers, how many have defective keyboards?

Explanation:

Step1: Convert percentage to decimal

To find the number of defective keyboards, we first convert the percentage \(0.5\%\) to a decimal. We know that to convert a percentage to a decimal, we divide by \(100\). So, \(0.5\%=\frac{0.5}{100}=0.005\).

Step2: Calculate the number of defective keyboards

We use the formula \(n = p\times N\), where \(p\) is the proportion (in decimal) and \(N\) is the total number. Here, \(N = 400\) (total number of computers) and \(p=0.005\). Then \(n=0.005\times400\).

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Answer:

\(2\)