Carl types 180 words in 2 minutes. At this rate, how many words can Carl type in 5 minutes?

Question

whats the answer

Answer 1

Carl types 180 words in 2 minutes. 

At this rate, Carl can type 450 words in 5 minutes.

Answer 2

2.5 times as many.

Answer 3

it would be 180 x 2.5. You can do the rest.

Answer 4

It's stoichiometry. Find common units and cancel them out for the desired answer.

Answer 5

Method I - Set up a proportion

x words/ 5 minutes = 180words / 2minutes

Multiply both sides by 5 minutes

x words = 180words / 2minutes * 5 minutes

x words = 450 words <––––––

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Method II - Rate

Calculate the rate , ie. number of words per minute

180 words/ 2minutes = 90 words / minute

multiply the rate by the time

90 words/ minute * 5 minutes = 450 words

450 words <––––––