Question

If Samantha wants two bags of chips and a coke,how much should she plan to spend?

Answer 1

Answer:

C. 7$

Step-by-step explanation:

Answer 2

Answer:

Samantha should plan to spend $7.

Step-by-step explanation:

Let the price of 1 pizza be = p

Let the price of 1 coke = c

Let the price of 1 pack of chips = b

As per table, we get following equations:

$p+c+b=9$ or $p=9-c-b$   ......(1)

$p+2c=10$     .......(2)

$2p+2b=12$    ......(3)

Substituting the value of p from (1) in (2)

$9-c-b+2c=10$

=> $c-b=1$    ......(4)

Substituting the value of p from (1) in (3)

$2(9-c-b)+2b=12$

=> $18-2c-2b+2b=12$

=> $18-2c=12$

=> $2c=18-12$

=> $2c=6$

c = 3

We have $c-b=1$

=> $b=c-1$

=> $b=3-1$

b = 2

And $p=9-c-b$

$p=9-3-2$

p = 4

We get the following cost now.

Cost of 1 pizza = $4

Cost of 1 coke = $3

Cost of 1 chips bag = $2

We have been given that Samantha wants two bags of chips and a coke.

So, she should spend $(2\times2)+3$= $4+3=7$

Hence, Samantha should plan to spend $7.