Arithmetic Sequences — Unit test Answers

Which equation can pair with x – y = –2 to create a consistent and dependent system?

Which ordered pair (c, d) is the solution to the given system of linear equations?

Arianna is buying plants for her garden. She buys 15 flowering plants for $96. Pink flowering plants sell for $8, and purple flowering plants sell for $5. How many pink flowering plants did Arianna buy?

What is one of the solutions to the following system?

Which system is equivalent to ?

In their last basketball game, Becky scored twice as many points as Min. Together, they scored 42 points. How many points did Becky score?

Vince wrote the sequence below.Which of the following explains whether the sequence is geometric?

Which statement describes the solution to the system of equations?

The relationship between women’s whole-number shoe sizes and foot lengths is an arithmetic sequence, where an is the foot length in inches that corresponds to a shoe size of n. A women’s size 7 fits a foot inches long, and a women’s size 12 fits a foot 11 inches long. What is the explicit formula for the arithmetic sequence? Round to the nearest hundredth, if necessary.

The first three terms of a geometric sequence are shown below.What is the eighth term of the sequence?

What is the solution to the system of equations?

A karate studio charges $35 for the first course and $22.50 for each course after that, even if the student leaves the course early. Cena paid $170 for her son to take courses. How many courses did he take?

Which graph shows the solution to the following system of inequalities?

A tennis team has 24 members. There are twice as many girls as boys on the team. How many girls are on the tennis team?

Which statement describes the system of equations?

Which statement correctly explains how Andre could find the solution to the following system of linear equations using elimination?

A small fair charges an admission fee for children and adults. The cost for admission is $3 per adult and $2 per child. On a certain day, total admission fees were $900, and 350 people attended the fair. How many children attended the fair that day?

Michael is paid $9 per hour to work at the movie theater and $7 per hour when he helps his aunt at her bakery. Michael cannot work more than 32 hours in a week, but he wishes to earn at least $251 each week. Which weekly work schedule is within Michael’s constraints?

The center of a circle is at the origin on a coordinate grid. A line with a positive slope intersects the circle at (0, 7). Which statement must be true?

Samir begins riding his bike at a rate of 6 miles per hour. Twelve minutes later, Chris leaves from the same point and bikes along the same route at 9 miles per hour. How long after Chris begins riding does he catch up to Samir?