Question

2) At a local grocery store, three bags of peanuts and four bags of almonds cost $27 45.

Arme same store, five bags of peanuts and two bags of almonds cost $24.05. Natasha
wants to buy one bag of peanuts and one bag of almonds, how much money does she need?​

Answer 1

$7.60

Explanation:

Use a linear function (again)

let x = peanuts

let y = almonds

3x+4y=27.45

5x+2y=24.05

Multiple 2nd equation by 2

3x+4y=27.45

10x+4y= 48.1

7x=20.65

x=2.95

Plug in x into either equation

10x+4y= 48.1

29.5+4y=48.1

4y=18.6

y=4.65

4.65+2.95=7.60