Solution 6:
Distribute the numbers: 4(2x) + 4(3) – 2(3x) – 2(-5)
8x + 12 – 6x + 10
(8x – 6x) + (12 + 10)
2x + 22.
Problem 7:
The perimeter of a square garden is 48 meters. What is the length of each side?
Solution 7:
The perimeter of a square is given by the formula:
Perimeter = 4 × side length
48 meters = 4 × side length
Side length = 48 meters / 4 = 12 meters.
Problem 8:
A bicycle travels a distance of 15 kilometers in 30 minutes. What is its speed in kilometers per hour?
Solution 8:
Time taken = 30 minutes = 0.5 hours
Speed = Distance / Time = 15 kilometers / 0.5 hours = 30 kilometers per hour.
Riddle 10:
A bat and a ball together cost $1.10. The bat costs $1 more than the ball. How much does the ball cost?
Solution 10:
