Answer:
11
Step-by-step explanation:
First you would have to add up all of the kids who do do chores, and all of the kids who do mot do chores. 24+8=32 and 27+16=43. It is then asking how many more... so you would subtract 32 from 43 and that would be 11.
The answers are:
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[A]: f(x) = -8 ; AND:
[B]: f(x) = -3 .
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Given:
The area model for
.
To find:
The value of
and the missing values in the area model.
Solution:
2.1 can be written as 2 and 0.1 on the left side of the area model.
3.2 can be written as 3 and 0.2 on the top of area model.
Area of the four parts of the area model are:




The complete area model is shown below.
After adding all areas of the area model, we get

Therefore, the value of
is 6.72 and the missing values of the area model are 0.3 and 0.02 respectively.