Final answer:
To find how many hours it will take Maya's crew to install 840 bricks, you can use the equation h = 210 bricks installed (b). Setting up a proportion and solving, it is determined that it will take them 52.5 hours.
Step-by-step explanation:
To determine how many hours it will take Maya's crew to install 840 bricks, we can use the equation h = 210 bricks installed (b). In this equation, h represents the number of hours worked and b represents the number of bricks installed.
To find the value of h, we can set up a proportion:
210 bricks / h hours = 840 bricks / x hours
Cross-multiplying, we get:
210x = 840h
Dividing both sides by 210, we have:
x = 4h
This means that for every hour worked, Maya's crew installs 4 bricks. Therefore, it would take Maya's crew 210 / 4 = 52.5 hours to install 840 bricks.