Respuesta :

So, for question 11 A.

What we know:

Each toothpick is 6.3cm.

1ft scale is equal to 1.26 cm

Building is 30ft tall

How to solve:

First divide 6.3 by 1.26=5
So, 5 toothpicks is equal to one ft

Next do 5 times 30=150

So 150 toothpicksar needed

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