Arithmetic Sequences — Unit test Answers

Raj tried to solve the system below. Raj’s Work What error did Raj make?

What is one solution of the following system?

What is the value of y in the solution to the following system of linear equations?

What is the point of intersection when the system of equations below is graphed on the coordinate plane?

Samuel wants to buy at least twice as many graphic novels as comic books. Comic books sell for $7 each, and graphic novels sell for $12 each. Samuel can spend a maximum of $50. Let c represent the number of comic books, and let g represent the number of graphic novels. Which system of inequalities can be used to find the number of comic books and graphic novels Samuel can buy?

The first term of a geometric sequence is –2 and the common ratio is . What are the next three terms of the sequence?

The equations –a – 7b = 14 and –4a – 14b = 28 represent a system of linear equations. Which statement correctly explains how to eliminate the variable b when solving the system of equations?

Which statement describes the system of equations?

What is the value of w in the solution to the following system of linear equations?

Which ordered pair (r, s) is the solution to the given system of equations?

Evan washes two types of vehicles. It takes him 30 minutes to wash a car and 40 minutes to wash a truck. He charges $12 to wash a car and $15 to wash a truck. In 270 minutes, Evan made $105 washing cars and trucks. How many trucks did Evan wash?

In a geometric sequence, and . What is the 12th term?

Which system of equations is consistent and dependent?

Mr. Lee asks a student to solve the following system of linear equations.Which ordered pair (p, q) is the solution to the system?

The explicit rule for an arithmetic sequence is What is the value of the 47th term? Round to the nearest tenth, if necessary.