Question

A calculator can perform a single calculation in about 0.0000034 seconds. How much time will it take to calculate 4,000 such calculations? Express your answer in scientific notation

Answer 1

Answer:

Solution:

This is a sum based on Ratio and Proportions.

1 calculation = 0.0000034 seconds

Which is 1 calculation = 3.4 × 10⁻⁶ seconds. This implies 4000 calculations will be ?

1 : 3.4 × 10⁻⁶ :: 4000 = ?

=> 4000 × 3.4 × 10⁻⁶

=> 4 × 10³ × 3.4 × 10⁻⁶

=> 13.6 × 10⁻³ seconds.

Hence the calculator would take  13.6 × 10⁻³ seconds

Step-by-step explanation:

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Answer 2

Answer:

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Step-by-step explanation:

1 calculation = 0.0000034 seconds

= 3.4 × 10⁻⁶ seconds. This implies 4000 calculations will be ?

so.... 4000 × 3.4 × 10⁻⁶

= 4 × 10³ × 3.4 × 10⁻⁶

there fore...the calculator would take  13.6 × 10⁻³ seconds.