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
Answer:
hmmm
Step-by-step explanation:
could you explain it more please.
11/10 is closer to 1.
To solve for this, give them common denominators. Lets make it 80 for this one.
To get 80, you multiply 8 by 10, so you have to do the same to the number on top. This gives you 70/80.
To get 80 for the second fraction, you multiply by 8 and get 88/80.
Now lets take the numbers on top and subtract them from 80.
88 - 80 = 8
80 - 70 = 10
8 is less than 10, and so 11/10 is closer.
The bes thing to do t find the scale factor is to divide the larger number by the smaller number. 260/13= 20 120/6= 20. As these are both the same, therefore, the scale factor is 20.
Hope this helps :)
