You are checking the intermediate results of a phone app that calculates the weight of an object in kilograms given the weight in pounds. The particular calculation you are checking, shown below, is for an input weight of 142 pounds and outputs 29.3 kilograms. What is the first step that has an error, and why is it an error?

Step 1

Input value: 142

Step 2

Conversion factor: 2.2

Step 3

Conversion result: 64.5

Step 4

Conversion factor: 2.2

Step 5

Conversion result: 29.3

Step 1, because the input weight should be 29.3.

Step 2, because the conversion factor should be 1,000.

Step 3, because this conversion should have been multiplied by 2.2 instead of divided by 2.2.

Step 4, because there is only 1 conversion needed.

Step 5, because this conversion should have been multiplied by 2.2 instead of divided by 2.2.

Question

Mathematics

Brianna Buck

24 September, 09:55

You are checking the intermediate results of a phone app that calculates the weight of an object in kilograms given the weight in pounds. The particular calculation you are checking, shown below, is for an input weight of 142 pounds and outputs 29.3 kilograms. What is the first step that has an error, and why is it an error?

Step 1

Input value: 142

Step 2

Conversion factor: 2.2

Step 3

Conversion result: 64.5

Step 4

Conversion factor: 2.2

Step 5

Conversion result: 29.3

Step 1, because the input weight should be 29.3.

Step 2, because the conversion factor should be 1,000.

Step 3, because this conversion should have been multiplied by 2.2 instead of divided by 2.2.

Step 4, because there is only 1 conversion needed.

Step 5, because this conversion should have been multiplied by 2.2 instead of divided by 2.2.

+3

Answers (1)

Know the Answer?

Joy · Answer 1

Step 4, because there is only 1 conversion needed.

Step-by-step explanation:

To convert pounds to kilograms, one only needs to divide by (2.2 pounds/kg). That was done in Step 3, so no further steps are needed.