Question

Write an expression to represent the number of teeth Cara has lost. Let represent the number of teeth Kathleen
lost.

Answer 1

SOLUTION

COMPLETE QUESTION

Kathleen lost a tooth today. Now she has lost 4 more than her sister Cara lost.

1. Write an expression to represent the number of teeth Cara has lost. Let K represent the number of teeth Kathleen lost.

2. Write an expression to represent the number of teeth Kathleen has lost. Let C represent the number of teeth Cara lost.

3. If Cara lost 3 teeth, how many teeth has Kathleen lost?

EVALUATION

Here it is given that Kathleen lost a tooth today. Now she has lost 4 more than her sister Cara lost.

1. Now we have to find the expression to represent the number of teeth Cara has lost.

Let K represent the number of teeth Kathleen lost.

Since Kathleen lost 4 more than her sister Cara lost

So the required expression to represent the number of teeth Cara has lost

= K - 4

2. Now we have to find the expression to represent the number of teeth Kathleen has lost.

Let C represent the number of teeth Cara lost.

Since Kathleen lost 4 more than her sister Cara lost

So the required expression to represent the number of teeth Kathleen has lost

= C + 4

3. So the relation between K and C is

K = C + 4

Since Cara lost 3 teeth

So C = 3

Hence the required number of teeth has Kathleen lost

= 3 + 4

= 7

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