Q&A - P4 Math

[Always21]

excelhub:

Always21:

Pls help:

Twice a number is greater than half that number by 24. Find the number.

Thanks in advance.

twice the number => 2u
half the number => 1/2 u.

difference by 1.5u which is = 24.
1u = 24/1.5 = 16.

Thank you very much
He got it right.

[Cher2101]

Pls help me on this problem ,


Joanne paid a total of $52 for 2 similar bowls and 4 similar plates.
5 Bowls cost as much as 3 plates.
How much money would joanne save if she bought 2 bowls and 2 plates instead?

Thank you

[tianzhu]

Cher2101:

Pls help me on this problem ,


Joanne paid a total of $52 for 2 similar bowls and 4 similar plates.
5 Bowls cost as much as 3 plates.
How much money would joanne save if she bought 2 bowls and 2 plates instead?

Thank you

Hi

Good Morning

5 Bowls cost as much as 3 plates.

1 plate ----- 5 units
1 bowl ----- 3 units

Joanne paid a total of $52 for 2 similar bowls and 4 similar plates.

6 units + 20 units ------- 52
26 units ----- 52
1 unit ------ 2

Hence, 1 plate ------- 10 (5 units)

How much money would Joanne save if she bought 2 bowls and 2 plates instead?

The answer is $20

Best wishes

[jwxh]

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

[BigDevil]

1 plate ---- 5 units

1 bowl ----- 3 units

5 Bowls cost as much as 3 plates

3 plates ---- 15 units
5 bowls ----- 15 units


:thankyou: tianzhu!
Was wondering how to solve this without using algebra.

[smartmummy]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

make it equal.In the qn they said 3plates=5bowls ---- 3*5=5*3 so plates=5units ,bowl=3units.

[MathIzzzFun]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

One way is to use the equal fraction/numerator method:

http://i48.tinypic.com/vfhull.png\">

cheers.

[tianzhu]

jwxh:

hi tianzhu,


i do not understand the first part, why

1 plate ---- 5 units
1 bowl ----- 3 units


kindly advise. tks

Hi

Hope this helps.

Best wishes

http://farm9.staticflickr.com/8086/8551140688_ab09f44b7a_z.jpg\">

[fohope]

Hi,

Please help me with this question. Thanks in advance.
How many sixths are there in 2 2/3?

[BigDevil]

2 2/3 = 8/3 = 16/6


16 sixths.