The image contains several math problems involving solving for variables and finding the area of parallelograms. We need to solve equations for $x$, and also find the area $y$ of a parallelogram with base 12cm and height $x$, given a height of 5cm. We also need to find the height $x$ of a parallelogram with base 12cm and area 90cm$^2$.
2025/7/3
1. Problem Description
The image contains several math problems involving solving for variables and finding the area of parallelograms. We need to solve equations for , and also find the area of a parallelogram with base 12cm and height , given a height of 5cm. We also need to find the height of a parallelogram with base 12cm and area 90cm.
2. Solution Steps
Problem 1:
Subtract 6 from both sides:
Problem 2:
Add 42 to both sides:
Divide both sides by 2:
Problem 3:
Divide both sides by 7:
Problem 4:
Multiply both sides by 5:
Problem 5:
Area of a parallelogram = base * height
Given base = 12 cm and height = cm, the area is:
Problem 6:
Given height = 5 cm, base = 12 cm, area = cm
Problem 7:
Given area = 90 cm, base = 12 cm, height = cm
Area = base * height
Divide both sides by 12: