Question

Question #b787b

Answer 1

For the first question, the answer is `"0.28 cm"`. This would be `"2.8 mm"`.

Explanation:

For this question, you can use a proportion to figure out your answer. So, you know that

`"28 cm = 100 years"`

`("28 cm"/x) = ("100 yr"/"1 yr")`

Here `x` is the cm grown.

So, to solve this, you can cross multiply which would end up with,

`"28 cm" xx "1 yr" = "100 yr" xx x`

Divide by `"100 yr"` and you will end up with

`"28 cm"/100 = "0.28 cm"`

To convert this to millimeters, you multiply the `0.28` cm by `10`. This is the conversion of centimeters to millimeters. So the answer would be `"2.8 mm"`.

Hope this helped.