Q&A - P5 Math
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A big Thank You to all. :celebrate:
How can i insert a picture for a question to ask?
Thanks[/img] -
Hi ,anyone can help me, pls
question:
A wheel made 72 revolutions.It has a radius of 23 cm.How far did it travel? :? -
greenfinger:
The distance it travelled = No. of revolutions * Circumference = No. of revolutions * Pi * Diameter = 72 * 3.14 * ( 2 * 23 ) = 10400 cm (Ans)Hi ,anyone can help me, pls
question:
A wheel made 72 revolutions.It has a radius of 23 cm.How far did it travel? :? -
Mary, Jonatha and David shared a sum of money. The total amount of money received by Jonathan was 2/3 the amount received by David. Mary received twice as much as what Jonathan and David received. After Mary had given $48 to Jonathan and $27 to David, and Jonathan gave $3 to David. At the end 3 of them had the same amount of money. Find the difference between the amount of money that Jonathan and Mary had at first
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Woodybird:
Mary, Jonatha and David shared a sum of money. The total amount of money received by Jonathan was 2/3 the amount received by David. Mary received twice as much as what Jonathan and David received. After Mary had given $48 to Jonathan and $27 to David, and Jonathan gave $3 to David. At the end 3 of them had the same amount of money. Find the difference between the amount of money that Jonathan and Mary had at first
At first
J [-][-] (2u)
D[-][-][-] (3u)
M[-][-][-][-][-][-][-][-][-][-] (10u)
J [-][-] (2u) + 48 - 3
D[-][-][-] (3u) + 27 + 3
M[-][-][-][-][-][-][-][-][-][-] (10u) - 48 - 27
3u + 27 + 3 -----> 2u + 48 - 3
1u -----> 15
Difference between the amount of money that Marie and Jonathan had at first = 8u = 8 * 15 = $ 120 (Ans) -
Hi
Please assist on the following:
Mrs Lim bought a luggage, a jacket and a pair of shoes. The jacket and the pair of shoes cost $232.10. The luggage and the jacket cost $560.60. The luggage cost 4 times as much as the pair of shoes. How much more did the luggage cost than the jacket?
Thanks. -
Cost of luggage - cost of shoes = $560.60-$232.10 =$328.50
Since cost of luggage is 4x cost of shoes,
luggage -> 4 units
shoes -> 1 unit
difference -> 3 units
3 units = $328.50
1 unit = $109.50
Shoes cost $109.50
Jacket costs $232.10 - $109.50 = $122.60
luggage costs $109.5 x 4 = $438
diff of cost bet jacket n luggage = $315.40 -
Neat:
http://i56.tinypic.com/25iu16x.jpg\">Hi
Please assist on the following:
Mrs Lim bought a luggage, a jacket and a pair of shoes. The jacket and the pair of shoes cost $232.10. The luggage and the jacket cost $560.60. The luggage cost 4 times as much as the pair of shoes. How much more did the luggage cost than the jacket?
Thanks. -
Please help to solve this problem sum:-
Ash bought number of books at an average price of $8.
If he decides to buy another book which cost $18, the average price of all the books will become $10.
Find the number of books he bought. (no algebria method pl) -
ashleychng:
HiPlease help to solve this problem sum:-
Ash bought number of books at an average price of $8.
If he decides to buy another book which cost $18, the average price of all the books will become $10.
Find the number of books he bought. (no algebria method pl)
http://i54.tinypic.com/j9vo6b.jpg\">
cheers.