The first row has 20 + 0 seats, the 2nd row, 20 + 1, 3rd row 20 + 2 . . . until 60th row has 20 + 59 (not 60 as the first row had 0 added on.
therefore you need to add up 20 + 21 + 22 . . . all the way to 76, 77, 78, 79.
79+ 21 = 100, 78 + 22 = 100, 77+ 23 = 100, in fact up to 49 + 51 = 100
That gives us 39 x 100 and add on the the other rows + 20 + 50
= 3970 seats
If you would like to simplify (z/1) / (1/7), you can do this using the following steps:
<span>(z/1) / (1/7) = z / (1/7) = z * (7/1) = z * 7 = 7z
</span>
The correct result would be d. 7z.
Answer:
oh yeah yeah oh yeah yeah yeah yeah
Step-by-step explanation:
The rate of change is it drops 3 degrees every hour.
my work :12-(3×6)=-6
9:00 = 12 degrees
10:00 = 9 degress.
11:00 = 6 degress.
12:00 = 3 degress
1:00 = 0 degress.
2:00 = -3 degress
3:00 = -6 degress
Hope this helps if so mark as brainliest
Given the proportion 7/5=x/3, you can cross-multiply to find the value of x.
21=5x.
Divide both sides by 5.
x=4.2.
Hope this helps!
