window cleaner has enough supplies to clean 21 windows per office building on a certain number of ildings. They can also clean the windows of a school with 42 windows. Altogether, there are enough pplies to clean 126 windows. How many office buildings can be washed? Identify the equation that suld be used to solve this problem algebraically. (1 point)
responses
21x + 42 = 126
42x - 21 = 126
21x - 42 = 126
42x + 21 = 126
The correct equation that should be used to solve this problem algebraically is:
21x + 42 = 126
The equation that should be used to solve this problem algebraically is:
21x + 42 = 126
where x represents the number of office buildings.
To solve this problem algebraically, we can use the equation:
21x + 42 = 126
Where 'x' represents the number of office buildings.
Let's break down the equation:
- 21x represents the number of windows in 'x' office buildings. Since each office building has enough supplies to clean 21 windows, the total number of windows in the office buildings is 21 multiplied by 'x'.
- 42 represents the number of windows in the school. We know there are 42 windows in the school.
The sum of the windows in the office buildings and the school is equal to 126, hence the equation 21x + 42 = 126.
To find the number of office buildings, we need to solve the equation for 'x'.