Answer:
z=21
Step-by-step explanation:
Subtract 16 from both sides of the equation.
4z=84
Divide both sides by 4
z=21
Slope: 3/5
The formula for slope is rise over run
In this case the rise would be Positive three because the points went from -2 to positive one. And the run would be 5 because it goes from -1 to 4
Hope this helps!!
Please tell me if I have made a mistake, I enjoy learning from them:)
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.
Complementary angles equal 90°
So 90-36= 54°
(1/3) + (1/2)
=> [(1×2)/(3×2)] + [(1×3)/(2×3)]
=> (2/6) + (3/6)
=> (5/6)
