Samerole
Answered

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You and a group of 7 friends go out for pizza. One large pizza and 2 large drinks cost ​$19.97. One large pizza and 4 large drinks cost ​$27.95. Write a linear function rule that models the total cost y​ (in dollars) for one large pizza and any number of drinks x.

Use the linear function rule to estimate the cost of one large pizza and 8 drinks for you and your friends.


The linear function rule is y = ?

Sagot :

RealBacon123

Answer:

hey

Step-by-step explanation:

Let x = the cost of one large pizza

Let y = the cost of one small drink

  3x + y = 21.96

-(6x + y = 27.93)

-3x        = -5.97

          x = $1.99

 

3(1.99) + y = 21.96

5.97 + y = 21.96

y = $15.99

 

So, 1 large pizza and 8 small drinks would cost  15.99 + 8(1.99) = $31.91

-God

DWRead

Answer:

Step-by-step explanation:

"1 pizza and 2 drinks cost ​$19.97"

p + 2d = 19.97

"1 pizza and 4 drinks cost ​$27.95"

p + 4d = 27.95

2d = 27.95-19.97 = 7.98

d = 3.99

p = 19.97 - 2d = 11.99

"cost y​ (in dollars) for 1 pizza and any number of drinks x."

y = 11.99 + 3.99x

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