Question

Amy bought 0.4 kilogram of tomatoes for $4.00. What is the cost in dollars per kilogram of tomatoes? $0.10 per kilogram $1.60 per kilogram $10 per kilogram $16 per kilogram

Answer 1

Given that amount of tomatoes bought by Amy = 0.4 kilogram

Total amount paide for 0.4 kilogram of tomatoes = $4.00

Now we have to find the cost in dollars per kilogram of tomatoes. That means find what is cost of 1 kilogram of the tomatoes.

We can setup ratio of tomatoes and price to easily find the answer.

$\frac{Cost \; of ; tomato}{weight \;of \; tomato}=\frac{Cost \; of \; 1kg \; tomato}{1}=\frac{4.00}{0.4 }$

$\frac{Cost \; of \; 1kg \; tomato}{1}=\frac{4.00}{0.4 }$

$Cost \; of \; 1kg \; tomato=10$

Hence final answer is $10.