Answer:
37 chairs.
Step-by-step explanation:
Let x be number of chairs that Liam has and y = number of chairs in 1 row.
Then x = 8y + 5
and x = 6y + 13 Subtracting:
0 = 2y - 8
2y = 8
y = 4.
and x = 8(4) + 5 = 37 chairs (answer).
Hope this helps.
So divide 20 into 3
then u do wat u do 4 the rest
We have two points on a plane p1(150, 25000), p2(90, 19000) and we can find a linear equation from them, lets calculate the slope:
m = (y2 - y1)/(x2 - x1)
where x1, y1 and x2, y2 are the point's coordinates:
m = (19000 - 25000)/(90 - 150)
m = -6000/-60
m = 100
so we have the slope now, and we can use the equation of the line for a point and having the slope, that equation is:
y - y1 = m(x - x1)
so we substitute:
y - 25000 = 100(x - 150)
y = 100x + 25000 - 15000
y = 100x + 10000
so this is the linear equation that models the airplane descent, when the airplane hits the ground, then y = 0, and we need to find the x, that is the position in relation to the runway:
<span>0 = 100x + 10000
</span>-100x = 10000
x = -100
The answer of the equation is 0