Answer:
Nolan is right.
Step-by-step explanation:
14 seats initially so thats your starting number, the +14 has to be there. He is right in saying +3n because it adds 3 every succeeding row. It would be 3 ×2 if its the second row, so 6 plus 14 equals 20 for example
Draw a box with 3 spaces tall and 5 spaces wide make sure he side is on the same line as line AB
Let x be the first computer. Let y be the first computer. We know that Work = 1 / Time.
If the work together, work can be done in 30 seconds. Thus, we have:
1/x + 1/y = 1/30
If x will finish in 50 seconds, we need to compute how many seconds y can finish the same work. Thus solving for y, we have the equation below:
1/50 + 1/y = 1/30
1/y = 1/30 - 1/50
1/y = 1/75
The second computer can finish the same work in 75 seconds.
Answer:
Step-by-step explanation:
1) Use the grid method to expand the two brackets
2) Collect like terms
3) Form the statement!
(See attached image)
