Question

1. lacobbe

Jacob has $25 worth of baseball trading cards. His sister, Bonita, has some trading cards and

his sister, Madison, has $7 worth of trading cards. Bonita cards are worth $2 each. Bonita's

and Madison's trading cards together are worth more than Jacob's cards. How many trading

cards, x, could Bonita have?

a) Write the inequality.

b) Solve the inequality using properties of operations.

c) Represent the solution(s) on a number line.

HHHHHHHHHHHHH

15

10

d) Use substitution to determine whether 8, 9, 12, or 15 are solutions to the inequality.

Answer 1

2x + 7 > 25 ; 9

Explanation:

Total worth of Jacob's cards = $25

Number of Bonita's card = x

Worth of Bonita's card = $2 each

Worth of Madison card = $7

Bonita and Madison cards are worth more than Jacob's card

The inequality

Bonita = 2x ; Madison = 7

2x + 7 > 25

Solving for x

2x > 25 - 7

2x > 18

x > 18 /2

x > 9