Roberto began his collection of trading cards when his grandfather presented him with a set of 18 cards. Each week, he added 5 cards to his collection. His collection grew by the sequence shown below.

18, 23, 28, 33, ...

How many cards did he have at the end of the 10th week?

A. 68

B. 58

C. 72

D. 63

Question

Caitlin

Mathematics

22 September, 04:05

Roberto began his collection of trading cards when his grandfather presented him with a set of 18 cards. Each week, he added 5 cards to his collection. His collection grew by the sequence shown below.

18, 23, 28, 33, ...

How many cards did he have at the end of the 10th week?

A. 68

B. 58

C. 72

D. 63

+5

Answers (2)

Know the Answer?

Mikayla Bell · Answer 1

68

Step-by-step explanation:

if he got 5 cards each week, and there were 10 weeks, then you do 5*10=50

He started with 18, so you need to ad 18 to 50 (18+50=68)

Jessie Kelly · Answer 2

Jessie Kelly 22 September, 04:25

0

68

just add five to the numbers

Roberto began his collection of trading cards when his grandfather presented him with a set of 18 cards. Each week, he added 5 cards to his collection. His collection grew by the sequence shown below.18, 23, 28, 33, ...How many cards did he have at the end of the 10th week?A. 68B. 58C. 72D. 63