Answer:
what fraction ??
Step-by-step explanation:
I don't see the problem
20 days
x=number of days vacation
y=daily expenses
xy=1100
(x+2)(y-5)=1100
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xy-5x+2y-10=1100
xy-5x+2y=1110
y=1100/x
x(1100/x)-5x+2(1100/x)=1110
1100-5x+(2200/x)=1110
-5x+(2200/x)=10
-5x^2 + 2200 = 10x
-x^2 + (440) = 2x
x^2 - 440 + 2x = 0
(x+22)(x-20)=0
x=-22,20
only take the positive answer because the negative answer doesn't make sense in the question
so the answer is 20
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I might be wrong; this question probation should've been this hard so I might have taken a wrong turn somewhere. feel free to double check my work
14000+7x=35x (x being the number of books) solve for x and you have your answer. 14000=35x-7x=28x therefore x=14000/28=500 so he needs to sell 500 books before he breaks even.
Answer:
C
Step-by-step explanation:
4(3x+5) = 12x+20
AA Postulate. You have two angles available for both triangles.
