9c+1 =10
c =1
(9-5)2+(14/7)
18
25% of 100
25
Three boxes filled with fiction books and two boxes filled with reference books were just delivered. If each box is filled with 120 books, how many fiction books are there?
360 Books
(x+2)(x+3)
x2+ 5x+ 6
6y-5=7
y = 2
(36-6) / 15 + 72
51
33% of 250
82.5
From the boxes just delivered, a librarian takes out 40 reference books to put on the shelf. Then, she takes out another 65 reference books and leave them at the checkout counter. How many reference books are left in the boxes?
135 Books
(x+4)(x-6)
x2-2x-24
8 = 3a – 4
a = 4
(10 x 9 -22) +5
91
76% of 325
247
A hotel has 7 floors. The lobby, restaurant and gym are located on the ground floor. The guestrooms are on 1st to 6th floor. If there are 35 standard rooms on each floor, how many standard rooms are there?
210 rooms
(x-7)(x-3)
x2-10x+21
m/5 + 9 = 11
m= 10
3(10-5) -52
-10
43% of 175
75.25
A hotel has 7 floors. The lobby, restaurant and gym are located on the ground floor. The guestrooms are on 1st to 6th floors. There are 18 suites altogether in the hotel, how many suites are there on each floor if each floor has the same floorplan?
3 suites
(x-9)(x+7)
x2-2x-63
13 + 7x = 27
x = 2
(33-5) / 2 + 62
50
80% of 475
380
Write an equation using “x” and then solve the equation. The rate charged for a standard room is $250 dollars. A couple stayed in a standard room for x nights and their total room charge is $750
250x=750
(3x+5)(2x+7)
6x2+31x+35