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MA_775_DIABLO [31]
3 years ago
5

A factory ships an order of 650 laptops. A worker test a random of 40 laptops and finds that 1 of the laptops takes more than 30

seconds to start up. Predict the number of laptops in the shipment that will take more than 30 seconds to start up.
Mathematics
1 answer:
sdas [7]3 years ago
3 0

Answer: 16

Step-by-step explanation:

Total number of laptops ordered= 650

Number of laptops tested= 40

Number of laptops that takes more than 30 seconds to start up= 1

To get the number of laptops that will take 30 seconds to start in the whole shipment goes thus:

Let the number of laptops that will take more than 30 seconds be represented by y.

1 : 40 = y : 650

1/40 = y/650

Cross multiply

40y = 650

y= 650/40

y= 16.25 which approximately gives 16.

There are expected to be 26 laptops that takes more than 30 seconds to start.

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