Q&A - P5 Math

[The Right Equation]

doraemo:

The Right Equation:

[quote=\"doraemo\"]pls help




(1)\tW and R collect stamps. If R gives W 15 stamps, he will have the same number of stamps as W. If W gives R 15 stamps, he will have ½ as many stamps as R. How many stamps does each of them have?

1st, draw the model for R having 2 small units (of 15 stamps each) more than W.

http://i43.tinypic.com/fntxqw.jpg\">

May I know by drawing the model for R of having 2 small units of 15 stamps each, which facts of the question is it trying to establish?[/quote]it is \"draw model for R having 2 small units of 15 stamps each MORE THAN W\".

means W is a large unit, & R is two small units MORE THAN it.

[doraemo]

Thank you for your help, The Right Equation !

[doraemo]

Need help for 4 questions:


1)\t A fishmonger had 3 kg of salmon. Mrs Lee bought 4/5 of his salmon and used 1 2/3 kg of it for dinner. How much salmon did Mrs Lee have left?

2)\tDeming, Remy and Khairul were given some tickets to sell. These tickets were sold at 7 for $10. Deming sold 5/8 of the tickets. Khairul sold 1/3 as many as Remy. The 3 boys collected $3200 from the sale of tickets.
a)\tHow many tickets did they sell altogether?
b)\tHow many tickets did Remy sell?

3)\tJustin bought a belt with 1/8 of his money. He also bought a pair of shoes that cost $35 more than the belt. He then had 1/2 of his money left.
a)\tHow much did the belt cost?
b)\tHow much did Justin have at first?

4)\tThere were 3258 people at a concert. Halfway through the concert, 2/5 of the male spectators and 500 female spectators left. Then the number of female spectators became three times as many as the male spectators.
a)\tHow many male spectators left halfway through the concert?
b)\tHow many female spectators were there at first?

[The Right Equation]

jas3angels:

Hi, please help....thanks.


Jeremy had a container filled with a number of20-cent, 50-cent and $1 coins. 1/5 of the 20-cent coins equal to 2/3 of the 50-cent coins. There were 3/8 as many 50-cent coins as $1 coins. If the total value of these coins was $6900. How many coins did Jeremy have altogether?

http://i43.tinypic.com/28376d.jpg\">

[The Right Equation]

doraemo:

Need help for 4 questions:


1)\t A fishmonger had 3 kg of salmon. Mrs Lee bought 4/5 of his salmon and used 1 2/3 kg of it for dinner. How much salmon did Mrs Lee have left?

2)\tDeming, Remy and Khairul were given some tickets to sell. These tickets were sold at 7 for $10. Deming sold 5/8 of the tickets. Khairul sold 1/3 as many as Remy. The 3 boys collected $3200 from the sale of tickets.
a)\tHow many tickets did they sell altogether?
b)\tHow many tickets did Remy sell?

http://i42.tinypic.com/8yci37.jpg\">

[The Right Equation]

doraemo:

Need help for 4 questions:



3)\tJustin bought a belt with 1/8 of his money. He also bought a pair of shoes that cost $35 more than the belt. He then had 1/2 of his money left.
a)\tHow much did the belt cost?
b)\tHow much did Justin have at first?

http://i44.tinypic.com/52kt2r.jpg\">

[The Right Equation]

doraemo:

Need help for 4 questions:


this is drawing models working backwards.

4)\tThere were 3258 people at a concert. Halfway through the concert, 2/5 of the male spectators and 500 female spectators left. Then the number of female spectators became three times as many as the male spectators.
a)\tHow many male spectators left halfway through the concert?
b)\tHow many female spectators were there at first?

http://i42.tinypic.com/2zscsnq.jpg\">

[carol73]

hi

pls help

1) Jamie spent $6 less than 4/7 of her money on a dress. She spent $6 more than 1/2 of ther remaining amount of money on a blouse. If she had $24left, how much money did she have at first

[The Right Equation]

carol73:

hi

pls help

1) Jamie spent $6 less than 4/7 of her money on a dress. She spent $6 more than 1/2 of ther remaining amount of money on a blouse. If she had $24left, how much money did she have at first

this qn uses drop-down model + working backwards. http://i40.tinypic.com/2ceqnm9.jpg\">

[tianzhu]

chloecube:

Rose n Mary have some stamps, if rose give Mary 15 stamps, Mary will have thrice as many stamps as rose. If mary give rose 15 stamps, rose will have twice as many stamps as mary.how many stamps does each of them have.


is there somethig wrong with the question? i cannot seem to get the model out of Rose and Mary :scratchhead:

Hi

Please refer to PM.

Best wishes