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

If Samantha wants two bags of chips and a coke,how much should she plan to spend?-example-1

2 Answers

2 votes

Answer:

C. 7$

Explanation:

User Iamruss
by
8.5k points
3 votes

Answer:

Samantha should plan to spend $7.

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*2)+3=
4+3=7

Hence, Samantha should plan to spend $7.

User Carmellose
by
9.0k points

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