Answer:
26 rows
Step-by-step explanation:
this is like a rectangle length×width situation.
seats per row = s
number of rows = r
s × r = 884
s = r + 8
so, we can use e.g. the second equation in the first :
(r + 8) × r = 884
r² + 8r = 884
r² + 8r - 884 = 0
the general solution to such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
x = r
a = 1
b = 8
c = -884
r = (-8 ± sqrt(8² - 4×1×-884))/(2×1) =
= (-8 ± sqrt(64 + 3536))/2 = (-8 ± sqrt(3600))/2 =
= (-8 ± 60)/2 = -4 ± 30
r1 = -4 + 30 = 26
r2 = -4 - 30 = -34
a negative number did not make any sense for the number of rows, so r = 26 is our answer.
The trip there is 58.5$ and the trip back is 63$. 63-58.5= 4.50. Which makes the answer B
6x^2 -7x + 2 with a factor of 2x -1
If you divide the trinomial by the factor you will get the other factor.
See attachment
Hey There,
Question: "<span>Jen and Marcus got 15 miles up river before they ran out of gas. they floated 9 miles back down the river before they reached the shore. how far did they get?"
Answer: 6 Miles
Reason: 15 Miles up river 9 miles down river. 15 - 9 = 6
Hope This Helps!
See Ya Broski!</span>
