Arika

ok i am havin some troubles with some of my math problems. its proportion word problems.

4.) Chris drove 200 mi in 4 h. At that rate, how long would it take Chris to drive 340 mi?
Set it up like this:

[ - ] - = -

5.) Karla walks 1.5 miles in 22 minutes. How long will it take her to walk 4 miles?

[ - ] - = -

8.) On a particular day, the exchange rate for dollars to German marks was 0.5582. How many German marks would you recieve in exchange for 350 $?

[ - ] - = -


Here is an example in case u dont get how to try it.

1.) There is 1 robin for every 5 birds. How many robins are there for 15 birds?

[ r/b] 1/5 = x/15 ( the fractions are supposed to be over each other. You cross multiply .
5x/5 =15/5
x= 3 robins