Algebra time.
We start with 42, this is our base number, we cannot go below this one. Since we add 3 chairs every row, then we add 3(x) to every row after the first one. The first row has 42 chairs. The second has 42 + 3(1), and the third row has 42 + 3(2). X is going to be one less than the row number you’re in. So for the 25th row we do 42 + 3(24). And for the one with 90 seats we have 42 + 48 = 90. There’s a difference of 48 chairs between 42 and 90. So we divide 48 by 3 to see the value of x. 48/3 is 16, so the equation is 42 + 3(16) = 90. Therefore we’re on the seventeenth row. An easier way is to start at 39 (42-3) and then do 39 + 3(1) as the first row.
Answer:
The sum of (−3x−4y) and (x+3y) in simplest terms will be:
Step-by-step explanation:
Given
Finding the sum of (−3x−4y) and (x+3y)
Therefore, the sum of (−3x−4y) and (x+3y) in simplest terms will be:
Answer:
100 centimeters
Step-by-step explanation:
Area of a square is side x side= s x s or s²
If s² = 1 square meter
s = √1 = 1 meter
Each side is 1 meter. To convert to centimeters multiply by 100 since there are 100 centimeters in 1 meter.
Each side is 100 centimeters
Answer:
6 in. per triangle & 24 in total (white squares only)
Step-by-step explanation:
So, one side is 12 inches and each side is made up of one blue and one white. With this you can just divide each side by 2, getting 6. There are 4 sides so,
4 sides X 6 in. per each square= 24
Therefore, she used <u><em>24 in. in total</em></u> and 6 for each triangle.
Hoped this helped!
