Julio and david were in target and decided to check out the clearance section. they found pencils and erasers that were on sale and decided to buy some. julio bought 4 pencils and 3 erasers for $0.37 and david paid $0.33 for 3 pencils and 4 erasers. what is the cost of one pencil? what is the cost of one eraser?

Cost of one pencil:

Cost of one eraser:

Step-by-step explanation:

Let be "p" the cost in dollars of one pencil and "e" the cost in dollars of one eraser.

Based on the information given in the exercise, you can set up the following system of equations:

You can use the Elimination Method to solve the system of equations.

Multiply the first equation by -3 ad the second one by 4. Then add the equations and solve for "e":

{

Substitute the value of "e" into any original equation  and solve for "p":

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

where are the images of the functions i can only see the question you typed.

step-by-step explanation: