*WILL REWARD BRAINLIEST* Jessica buys ground beef in a 10-pound tube at the store. She spends $19.90 on ground beef.

1. State the formula for calculating the cost.

2. Identify the unit of measure for this problem.

3. Calculate the unit cost for the ground beef that Jessica purchased. Show your work to support your answer.

Step-by-step explanation:

About the Common Core State Standards in Mathematics

The Common Core State Standards (CCSS) for Mathematics are organized by grade level in grades K–8. At the high

school level, the standards are organized by conceptual category (number and quantity, algebra, functions,

geometry, and probability and statistics), showing the body of knowledge students should learn in each category to

be college and career ready, and to be prepared to study more advanced mathematics. The Standards for

Mathematical Practice describe ways in which developing student practitioners of the discipline of mathematics

increasingly ought to engage with the subject matter as they grow in mathematical maturity and expertise

throughout the elementary, middle and high school years.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.