Jake buys a fruit smoothie and a protein bar for $5.90. Kobe buys 2 fruit smoothies and 4 protein bars. He pays $16.80. What is the cost of each fruit smoothie and each protein bar?

Fruit smoothie: $3.4

Protein bar: $2.5

Step-by-step explanation:

Let x represent cost of fruit smoothie and y represent cost of protein bar.

We have been given that Jake buys a fruit smoothie and a protein bar for $5.90. We can represent this information in an equation as:

We are also told that Kobe buys 2 fruit smoothies and 4 protein bars. He pays $16.80. We can represent this information in an equation as:

Upon substituting equation (1) in equation (2), we will get:

Therefore, each protein bar costs $2.5.

Upon substituting in equation (1), we will get:

Therefore, each fruit smoothie costs $3.4.

if x = 1, then the answer is 3.5