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Eliza’s puppy weighed 22 kilograms at 12 months of age. This is a 120% gain from its weight at 6 months. Eliza used these steps to find the puppy’s weight at 6 months, but made an error.Step 1. Let x represent the puppy’s weight at 6 months.Step 2. x + 120/100=22Step 3. x + 1.2 = 22Step 4. x=22-1.2Part A(1) In which step did Eliza make an error?(2) Explain what Eliza did wrong in the step where an error occurred. Part BWhat was the puppy’s actual weight at 6 months? Show your work.

Respuesta :

takahiro
For the answer to the question above,

let x be the puppy's weigh n 6 months. (RIGHT)

But step 2 is wrong!!!
Which makes the following equation wrong

The equation should be
x + x · 120/100 =
Which makes the answer 22kg



Part B
 x + x · 120/100 = 22kg then x + 1.2x = 22kg eliminate 2.2x = 22kg x = 10kg 

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