Candy Chan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Statistics

Can l check if the answer is correct ?

Replies 7
Loo Wee Lee

Answer should be 9

6 years ago
Jessica sica

x number of boys = 68x x + 1 number of boys = 70x + 70 68x + 88 = 70x + 70 2x = 18 x = 9

6 years ago
Candy Chan

I don't understand your working Sica Jessica

6 years ago
Jessica sica

have you learnt algebra? :/

6 years ago
Candy Chan

Not yet

6 years ago
Loo Wee Lee

Seen my son doing it like this before.

6 years ago
Candy Chan

6 years ago

Candy Chan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Measurement

One more pls help. Thanks in advance.

Replies 1
Candy Chan

Thank you :)

6 years ago

Candy Chan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Pls help !!!

Replies 4
Caleb Tey

Gap is 28. Whether 2x or 3x , gap remains true. Since 3:1, means gap equals 2 units. Boy will be 14. So 14-10=4

6 years ago
Candy Chan

Why 14?

6 years ago
Caleb Tey

6 years ago
Candy Chan

Thank you :)

6 years ago

Candy Chan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

One more pls help. Tks

Replies 2
Raymond Ng

6 years ago
Candy Chan

Thank you, Raymond Ng :)

6 years ago

Candy Chan
Asked 9 years ago

SG chevron_right Primary 5 chevron_right Number and Algebra

Pls help. Tks

Replies 4
Shaoyang Brandon

Hi, Candy Chan. You have to list out the length of the road that was build each day. Look at the figures below. :) Day 1: 0.24 km Day 2: 0.24 -0.06 Day 3: 0.24 - (0.06 x2) Day 4: 0.24 - (0.06 x 3) Day 5: 0.24 - (0.06 x 4) = 0 Hint 1: What should you do with the length of the road built from Day 1 to Day 4? Hint 2: What about the remaining distance of 0.405 km? Why was it included in the word problem? If you can answer both hints, you will find the total length of the road the contractor had to build. :)

6 years ago
Candy Chan

6 years ago
Candy Chan

For hint 1 , is it adding them together?

6 years ago
Candy Chan

For hint 2, is it add the sum l have added earlier with 0.405 ?

6 years ago

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