Question

The total cost of a pizza and 3 drinks is $19. The price of the pizza is $10 and each drink is the same price, d. 6) Which model represents the situation?

Answer 1

The total cost of pizza and drinks, is an illustration of a linear function.

The model that represents the situation is: $\mathbf{10 + 3d = 19}$

The given parameters are:

$\mathbf{Total =19}$

$\mathbf{1\ pizza =10}$

$\mathbf{1\ drink =d}$

The cost of 3 drinks will be 3d

The total cost would then be:

$\mathbf{Total = 10 + 3d}$

Substitute 19 for Total

$\mathbf{10 + 3d = 19}$

Rewrite the above equation as:

$\mathbf{3d + 10 = 19}$

Hence, the model that represents the situation is: $\mathbf{10 + 3d = 19}$

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