Problems Involving Algebraic Expressions

Robert wants to fence his rectangular lot. If the length of the lot is 3 meters longer than its width. What is the perimeter of the of the rectangular lot if its width is y meters?

• 4y + 6 meters

• 6y + 4 meters

• 4y – 6 meters

• 6y – 4 meters

Rose had ten roses (r) in her garden. During weekends she buys additional roses. Express her total roses in algebraic expression.

• 10r

• r – 10

• 10 – r

• 10 + r

In Grade 7- Belardo, there are 15 girls and b boys. Which of the following expression represents the total number of students in the class?

• 15 – b

• 15 + b

• b – 15

• 15b

I already have 5 pens, Mark give me 2 packs of pens. Each pack contains p pens. How many pens do I have now?

• 2p + 5

• 2p – 5

• 5p + 2

• 5p – 2

There are y carabaos and d ducks in the farm. How many legs are there?

• 2y – 4d

• 2y + 4d

• 4y – 2d

• 4y + 2d

Two numbers add up to 10. If one of the numbers is f, what is the other number?

• 10 + f

• 10 – f

• f – 10

• 10f

Each student has crayons (c) and pencils (p). If there are 26 students, how many crayons are there?

• 26c

• 26p

• 26 + c

• 26 + p

Agnes is q years old. How old she will be in 12 years?

• q – 12

• 12 – q

• q +12

• 12q

A car travels y kilometers in 1 hour. Express the speed of the car after 4 hours.

• y

• 4y

• y + 4

• y – 2

Mhackie helps his father feed the chickens in their farm. Each day, a chicken z eats 95 grams of growing mash. Mhackie will prepare a food budget for the chicken. Which of the following algebraic expressions represent the daily food budget for the chickens in the farm?

• 95z

• z + 95

• z – 95

• 95 – z