Linear Equations
Find y.
104 = y - 67
y = 171
Find x.
(x+7) / 8 = 5
x = 33
Find q.
3.7q + 26.2 = 111.67
q = 23.1
Find x.
-5x - 4.8 = 6.7
x = -2.3
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
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