Relationship Between Two Quantities

Cat (c) Dog (d)
1 4
2 5
3 6
4 7
Question 1
The table shows the age relationship between Jamie's cat and dog.

Which equation gives this relationship? Let c represent the cat's age and d represent the dog's age.
Responses
A c = d + 4c = d + 4
B d = c + 4d = c + 4
C c = d + 3c = d + 3
D d = c + 3d = c + 3
Question 2
What is the age of Jamie's dog be when her cat is 7 years old?
Responses
A 99
B 1010
C 1111
D 1212

3 answers

Question 1: The correct equation for the relationship between the cat's age (c) and the dog's age (d) is C. c = d + 3.

Question 2: To find the age of Jamie's dog when her cat is 7 years old, we substitute c = 7 into the equation c = d + 3.

So, 7 = d + 3.
Subtracting 3 from both sides, we get:
4 = d.

Therefore, the age of Jamie's dog will be 4 years old when her cat is 7 years old.
The correct answer is B. 4.
you sure?
Apologies for the confusion. Let's check again.

From the given table, we have the following relationship between the cat's age (c) and the dog's age (d):

c d
1 4
2 5
3 6
4 7

The change in age for both the cat and dog is the same, which is 3. So the correct equation for the relationship is:

c = d - 3

Now let's find the age of Jamie's dog when her cat is 7 years old.

Substituting c = 7 into the equation, we have:

7 = d - 3

Adding 3 to both sides, we get:

10 = d

Therefore, the age of Jamie's dog will be 10 years old when her cat is 7 years old.

The correct answer for question 2 is:

B. 10.