iMath
Asked 5 years ago

VN chevron_right Lớp 12 chevron_right Giải tích: Nguyên hàm, tích phân và ứng dụng

Thầy cô giúp e câu 13 ah

Replies 1
Trần Thị Hoà

Đ.a

5 years ago

iMath
Asked 5 years ago

VN chevron_right Lớp 12 chevron_right Giải tích: Hàm số

Giúp e câu 36

Replies 1
Trần Thị Hoà

Đ. A

5 years ago

iMath
Asked 5 years ago

SG chevron_right Primary 5 chevron_right Fractions

Pls help. Thanks

Replies 1
Calvin Chia

5 years ago

iMath
Asked 5 years ago

SG chevron_right Primary 6 chevron_right Fractions

Need help. Thanks

Replies 6
Abdul Khabir

For this qns, we have to work backwards. And we have to think of one item on its own first, then relative to the other. So, we start with number of cream puffs left. We can try and model that out based on info given.

5 years ago
Abdul Khabir

Model 1

5 years ago
Abdul Khabir

We realise that the half of cream puffs that Rachel still have can be partitioned to depict the equivalent of what Gina have before she ate 8. So redrawing/editing model 1 we get..

5 years ago
Abdul Khabir

Let's review the last sentence. What does it say? Cream puffs(model above) are 1/3 of the number of cookies Rachel had. So now, the whole of model 2 above becomes 1 unit of cookies that Rachel have left. We can stack the units to look like this..

5 years ago
Abdul Khabir

Now, remember that Rachel ate 18 cookies. So if we were to add the 18 cookies to the model above we get amount of cookies she had at first

5 years ago
Abdul Khabir

Now we double that to get number of cookies at first..

5 years ago

iMath
Asked 5 years ago

SG chevron_right Primary 6 chevron_right Number and Algebra

Pls help

Replies 1
Valerie Ooi

Solution

5 years ago

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