X = 8.) 2x8 +1 = 17, 8 +9 = 17
Answer:
The of the player is
Step-by-step explanation:
From the question we are told that
The relationship between the length to the height is
The height of the basketball player is
Substituting the value of height of the basket ball player in to the model we have the of the player is
X = plan A and y = plan B
7x + 9y = 720
5x + 3y = 360.....multiply by -3
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7x + 9y = 720
-15x - 9y = -1080 (result of multiplying by -3)
---------------add
-8x = - 360
x = -360/-8
x = 45 minutes <== plan A
5x + 3y = 360
5(45) + 3y = 360
225 + 3y = 360
3y = 360 - 225
3y = 135
y = 135/3
y = 45 minutes <== plan B
so both plans last 45 minutes <==