Question

Josiah works at an electronics store as a salesperson. Josiah earns a 2% commission on the total dollar amount of all phone sales he makes, and earns a 7% commission on all computer sales. Josiah had $300 more in computer sales than in phone sales and earned a total of $156 in commission. Write a system of equations that could be used to determine the dollar amount of phone sales Josiah made and the dollar amount of computer sales he made. Define the variables that you use to write the system.

Answer 1

define variables:

Let p= the number of dollars in phone sales

Let c= the number of dollars in computer sales

System of equations:

0.02p+0.07c=156

c=p+300

i got it right and this is exactly what they tell you after you answer it. For DeltaMath

hope this helps <3

Answer 2

Answer: the equations are

0.02x + 0.07y = 156

y = 300 + x

Step-by-step explanation:

Let x represent the total dollar amount of phone sales that she makes.

Let y represent the the total dollar amount of computer sales that she makes.

Josiah earns a 2% commission on the total dollar amount of all phone sales he makes, and earns a 7% commission on all computer sales. She earned a total of $156 in commission. This means that

0.02x + 0.07y = 156 - - - - - - - - - - -1

Josiah had $300 more in computer sales than in phone sales. This means that

y = 300 + x