Laura earns $2.90 more per hour than her friend, jess. write an equation to show how much jess earns per hour. use j to represent her hourly rate.

how much does jess earn if she works 20 hours

Equations are

J=j →  (1)

L=$2.90+J=$2.90+j  →   (2)

Jess earn $20j in 20 hours

Step-by-step explanation:

Given that Laura earns $2.90 more per hour than her friend, Jess.

we have to write an equation to show Jess earns per hour.

As j represents hourly rate of Jess i.e

Jess earns $j per hour.

∴ J=j →  (1)

As Laura earns $2.90 more per hour than her friend, Jess

⇒ L=$2.90+J=$2.90+j  →   (2)

Eq (1) and (2) are required equation.

we have to find how much Jess earn in 20 hours

Hours=20

∴ In 1 hr Jess earn $j

In 20 hrs Jess earn $ 20j

1) is right

step-by-step explanation: