Covert the problem into and equation using formulas
Answer:
y=3x-9
Step-by-step explanation:
<u>Equivalent Fractions 1/2</u>
2/4
3/6
4/8
5/10
6/12
<u>Equivalent Fractions 1/4</u>
2/8
3/12
4/16
5/20
6/24
<u>Equivalent Fractions 1/8</u>
2/16
3/24
4/32
5/40
6/48
<u>Equivalent Fractions 1/3</u>
2/6
3/9
4/12
5/15
6/18
<u>Equivalent Fractions 1/6</u>
2/12
3/18
4/24
5/30
6/36
A has 27,000 seats, B has 14,
200 seats, and C has 12,800 seats
You can write two equations using the given information:
.. L = W +8
.. L * W = 609
Using substitution, you get a quadratic.
.. (W +8) * W = 609
.. W^2 +8W -609 = 0
Not surprisingly, you're looking for factors of 609 that differ by 8.
.. 609 = 1*609 = 3*203 = 7*87 = 21*29
The last two are the factors of interest.
.. (W +29)(W -21) = 0
The width of the rectangle is 21 feet, the length is 29 feet.
_____
Sometimes it is easier to work with the average dimension. Here, let that be x. Then you have
.. (x +4)(x -4) = 609
.. x^2 -16 = 609
.. x^2 = 625 = 25^2 . . . . . . . one of your memorized math facts
So, the dimensions are
.. 25 +4 = 29 by 25 -4 = 21, that is, 29 ft by 21 ft.
