Math Writing Questions 3

Question 1

A word problem states: 'Sarah earns $15 per hour and works h hours. She also receives a $50 bonus.' Which equation represents her total earnings T?

Accepted Answer

T = 15h + 50

Answer

T = 50h + 15

Answer

T = 15 + 50h

Answer

T = 15h - 50

Question 2

Which inequality represents 'a number x is at most 12'?

Accepted Answer

x ≤ 12

Answer

x < 12

Answer

x ≥ 12

Answer

x > 12

Question 3

A tank holds 200 gallons and drains at 4 gallons per minute. Which expression gives the amount W remaining after m minutes?

Accepted Answer

W = 200 - 4m

Answer

W = 4m - 200

Answer

W = 200 + 4m

Answer

W = 200 ÷ 4m

Question 4

Which expression represents 'three less than twice a number n'?

Accepted Answer

2n - 3

Answer

3 - 2n

Answer

2(n - 3)

Answer

3n - 2

Question 5

A store marks up items by 20%. If an item costs the store $c, which expression gives the selling price S?

Accepted Answer

S = 1.2c

Answer

S = c + 20

Answer

S = 0.2c

Answer

S = c - 0.2c

Question 6

Which equation models 'the sum of two consecutive integers equals 47'?

Accepted Answer

n + (n + 1) = 47

Answer

n + (n + 2) = 47

Answer

2n = 47

Answer

n(n + 1) = 47

Question 7

A recipe requires r cups of flour for 12 cookies. Which expression gives the cups needed for 60 cookies?

Accepted Answer

5r

Answer

r + 60

Answer

60r

Answer

r/5