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hi, please help with these questions. i’ve attempted them but i am not too sure if they’re correct. thank you.

Hi Please Help With These Questions Ive Attempted Them But I Am Not Too Sure If Theyre Correct Thank You class=

Sagot :

itzadrien

Let the number of sweets Mrs. Chua has be x

And the number of children be y

So,

x-8y=3 ------- 1️⃣

x-9y= -2 ------- 2️⃣

Change the signs of equation 2️⃣

x-8y=3

+x-9y=-2

- + +

__________

  • y = 5 ----- 3️⃣

Substitute equation 3️⃣ in equation 1️⃣ :

[tex] \sf \: x - 8y = 3[/tex]

[tex] \sf \: x - 8 \times 5 = 3[/tex]

[tex] \sf \: x - 40 = 3[/tex]

[tex] \sf \: x = 3 + 40[/tex]

[tex] \tt \: x = 43[/tex]

Therefore, The total number of children i.e. y is 5 and the total number of sweets Mrs. Chua i.e. x is 43...

  • The extra number of sweets required by Mrs. Chua is 2 because when each child gets 9 Mrs Chua has 2 sweets short...
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