February 23, 2017

Homework Help: math

Posted by faye on Saturday, January 15, 2011 at 9:59am.

1.a collection of 105 coins consists of 1 peso and 5 pesos. if the total value is 205 pesos, find the number of coins of each denomination in the collection.

2.leslie's wallet contains 20 peso bills and 1 peso coins with a total of 232 pesos. how many each denomination are in her wallet if she has 21 pieces in all?

3. working together, alice and betty can do a certain job in 4 1/3 days. but alice fell ill after 2 days of working and betty finished the job continuing to work alone in 6 3/4 more days. how long it take each to do the job if each of them worked alone?

4. gian and arwin can finish a project in 4 3/2 hours. gian can do it alone in half as much time as arwin can do the job. how long will it take arwin to do the job alone?

5. roma can finish weeding a flower garden in 4 1/2 hours. roma has worked for 2 hours before amor joined her and they finished the job in 2 hours. how long would it take both of them to finish the job working together? how long would it take amor to do the job alone?

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