Answer:
18≤ 2.50x 
because there is only so much money she is allowed to spend has to be less than or equal to 18
 
        
             
        
        
        
We are given the current market price that is <span>$1,200 and we are asked in the problem to compute the target cost if one wishes to gain a 30% profit. In this case, we have to minimize the cost to achieve the profit desired. Then,
1.3 y = 1200
where y is the target cost
y = $923.08
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Answer:
y = - 3/2x - 2
Step-by-step explanation:
that would be the correct answer happy 2 help
 
        
             
        
        
        
Answer:
Step-by-step explanation:
It’s 18 cuase you subtract 54-36=18
 
        
             
        
        
        
Answer:
Step-by-step explanation:
let x be part at 8%, y be part at 10% and z be part at 15%
(1) x+y+z=6300
the amount of money invested at 15% was $100 more than the amounts invested at 8% and 10% combined. so
(2) z=x+y+100
The total annual income from these investments was $766. so
0.08x+0.1y+0.15z=766 or
(3) 8x+10y+15z=76600
substitute (2) into (1)
x+y+x+y+100=6300
(4) 2x+2y=6200
substitute (2) inot (3)
8x+10y+15(x+y+100)=76600
(5) 23x+25y=75100
solving (4) n (5)
x=1200
y=1900
z=1200+1900+100=3200