Reduce 30 birds per 5 cages.

Hint: birds per cages is 30/5

Bob bought a pack of 36 water bottles for 80 RMB. What did each water bottle actually cost him?

There are 8 buses and 160 students. What is the ratio of students to buses? Hint: STUDENTS to BUSES. Not buses to students.

10.4 x -0.5 =

x/3 = 1/4 what is the first step we should take?

Hint, multiplying 1/4 to each side does NOT help us to isolate x

-23.4 - 3.4 =

HInt: the answer is NOT: -20

3/10 - -1/4 =

Hint: 3/10 + 1/4 =

1/2 - (-2/5)

hint: a subtraction sign and a negative is a positive operation

double hint for people who have missed this question twice already: 1/2 + 2/5 =

6/15 as a decimal =

-2/3w = 60

hint: multiply each side by -3/2

hint: the answer is a NEGATIVE

hint: -3/2 x -2/3 = 60 x -3/2

x = 60 x -3/2

-8 + (15 -3) divided by 4

hint: the answer is a negative

hint: -8 + 12 divided by 4

hint: first do 12 divided by 4

x - 17.6 = 1.9

hint: what do we ADD to each side to isolate the x?

hint: the answer has to be positive, not negative

Bob received 75% on his science test. He answered 24 questions correctly. How many questions were on the science test?

Hint: 75% of what total number gives me 24?

Hint: .75 times x = 24

Hint: .75x = 24

The hospital received 5 cartons of protective masks. This was only 20% of what they needed. How many cartons did they need?

hint: 5 cartons is 20% of what I need.

hint: 5 = .20 times x

hint: 5 = .20x

The bookseller had 500 copies of a book. In one week he sold 410 of them. What percentage of books remained?

hint: 90 is what percent of 500?

hint: 90 = x times 500

7 is what % of 35?

hint: 7 = x times 35

48 is what percent of 96?

hint: people, please! 48 is one half of 96, right?

50% = 1/2, right?

You could have done this one in your head.

5 = .20x