MeiYee Leong
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Replies 4
Shaoyang Brandon

The difference in amount, which is $35, does not change because both girls spend the same amount. Thus, if Cally has twice that of Anne after spending, and the difference in their remaining amount is $35, Anne will have $35 and Cally, $70. Therefore, they will have $105 in the end. Subtract $105 from $165 and $200, the amount the girls have at the start, and you will find out their total spending, which is $260. Thus, each of them will spend half of $260, which is $130. :)

6 years ago
MeiYee Leong

Thanks Brandon

6 years ago
Soo Vei Li

For students who need more visual...

6 years ago
MeiYee Leong

Thanks Vei Li

6 years ago

Aaron Cuenco
Asked 9 years ago

SG chevron_right chevron_right

How to solve this question? Find the equation of the locus of the 3rd vertex of an isosceles triangle if one of its equal sides joins the points (0,-4) and (5,-1).

Replies 2
Maruko Chan

Is this primary school work? 😱

6 years ago
Soo Vei Li

This question is not clear: are the 2 pairs of given coordinates the other 2 vertices? If so, which is the point where the two equal sides meet? If (0, -4) is the point where the 2 equal sides meet, then the locus of 3rd vertex is a circle with centre (0, -4) with radius which is the distance between (0, -4) and (5, -1), except (5, -1). Sketching a diagram will help visualise the problem and the locus.

6 years ago

Alona De Silva Domingo
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Can you help my boy to answer this qn. Thank you so much.

Replies 4
Zhong Shu Hao

4pm to 6pm: 2 hours ---＞ 2×$8 ＝ $16 6pm to 10pm: 4 hours ---＞ 4×$10＝$40 Total to pay ＝$16+$40 ＝$56

6 years ago
Soo Vei Li

This question requires the student to read tables of information. First thing is to break down the 4 pm to 10 pm into blocks the can be calculated using the table of info. Then work out how many hours for each category of rates, multiply by the rate per hour.

6 years ago
Sujatha Shanker Sebastian

$56

6 years ago
Virgie Gayda-Esteves

4 to 6 pm: 2 hours x 8 per hour=16 6 to10: 4 hours x 10 =40 16 + 40 = $ 56

6 years ago

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 6 chevron_right Fractions

Making it visual...

Replies 0

Adrian Ng
Asked 9 years ago

SG chevron_right Primary 6 chevron_right

Making it visual...

Replies 0

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