Group 2 Period 7

Linear Equations

100

Find y.

104 = y - 67

y = 171

200

Find x.

(x+7) / 8 = 5

x = 33

300

Find q.

3.7q + 26.2 = 111.67

q = 23.1

400

Find x.

-5x - 4.8 = 6.7

x = -2.3

500

A department store has sold 3/5 of their formal dresses, but 10 were returned. Now the store has 62 formal dresses. How many were there originally? 

120 dresses

Inequalities

500

Sasha needs to send out 300 wedding invitations. In 1 minute, she can put 6 invitations into envelops and apply stamps to them. It takes her a minimum at 50 seconds to address each invitation by hand. If n represents the number of invitations Sasha can prepare for mailing in 180 minutes, which of the following inequalities best models the situation described above?

a. 180 >= n/6 + 5n/6

b. 180 > n/6 + 5n/6

c. 300 <= 6n + 6/5n

d. 300 < 6n + 6/5n 

a. 180 >= n/6 + 5n/6