Answer:
65.3 km/hr
Step-by-step explanation:
49/45 x 60 = 65.3 km/hr
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Your answer is -B- i’m 100% sure
I don't see any question there ... just a bunch of pretty rulers.
I'm going out on a limb here, and I'm gonna assume that the question is "Identify the number to which the arrow on each ruler is pointing.".
If that's the question, you're welcome. If not, ignore everything I'm about to say.
Orphan ruler on page-1: 6 and 1/4
Rulers on page-2, starting at the top and working down:
6 and 3/8
1
3 and 5/8
2 and 1/2
7 and 3/4
4 and 7/8
5 and 1/8
9 and 1/2 .
If these answers are not helpful, remember: I'm the one who had to invent the question, and for the question that I invented, these answers are all correct !
<span>Constraints (in slope-intercept form)
x≥0,
y≥0,
y≤1/3x+3,
y</span>≤ 5 - x
The vertices are the points of intersection between the constraints, or the outer bounds of the area that agrees with the constraints.
We know that x≥0 and y≥0, so there is one vertex at (0,0)
We find the other vertex on the y-axis, plug in 0 for x in the function:
y <span>≤ 1/3x+3
y </span><span>≤1/3(0)+3
y = 3.
There is another vertex at (0,3)
Find where the 2 inequalities intersect by setting them equal to each other
(1/3x+3) = 5-x Simplify Simplify Simplify
x = 3/2
Plugging in 3/2 into y = 5-x: 10/2 - 3/2 = 7/2
y=7/2
There is another vertex at (3/2, 7/2)
There is a final vertex where the line y=5-x crosses the x axis:
0 = 5 -x , x = 5
The final vertex is at point (5, 0)
Therefore, the vertices are:
(0,0), (0,3), (3/2, 7/2), (5, 0)
We want to maximize C = 6x - 4y.
Of all the vertices, we want the one with the largest x and smallest y. We might have to plug in a few to see which gives the greatest C value, but in this case, it's not necessary.
The point (5,0) has the largest x value of all vertices and lowest y value.
Maximum of the function:
C = 6(5) - 4(0)
C = 30</span>
