Unit 1 Summative Review HMW

7x = 6 + 5x

Answer explanation

x = 3

2 (x + 4) = 16

Answer explanation

x = 4

7 + 5x = 3x + 13

Answer explanation

x = 3

A teacher charges $2 for a pencil to student who forgot to bring one to class. Nelson was charged at least $30, how many times did he forget his pencil?

Alfred's weekly income is at least 500 dollars with a fixed income of 200 dollars for working at the bank and making 12 dollars per hour at another job. Write an inequality that can model this situation.

Tags

CCSS.6.EE.B.8

24x + 60 = 4(x-25)

25x - 35 = 25x + 20 - 55

7x - 35 = 7x - 27

Calvin is offered a job with a salary of $32,000 and a raise of $5,000 per year. Another company offers him $72,000 and a raise of $1,000 per year. After how many years will Calvin make more money if he accepts the first offer?

Brad has a $27 online gift voucher. He plans to buy as many books as he can. The cost of each book is $3. How many books can he afford without spending more than his gift voucher amount?

Tags

CCSS.3.OA.A.3