Answer:
Step-by-step explanation:
Do percent Proportions
23,750 x
______
______ 100
5
Cross multiply
23,750×100= 2375000
5×x= 5x
2375000÷5+
idk sorry
9, 40, and 42
(x, y) = (2, -1.5)
x + 2y = -1
5x - 4y = 16
<=>
(2)x + (2)2y = (2)(-1)
2x + 4y = -2
7x = 14
x = 2
(*)x + 2y = -1
=> 2 + 2y = -1
=> 2y = -3
=> y = -1.5
=> (x, y) = (2, -1.5)
153.952848723
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