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jhashknkughb6759
10.01.2020 •
Mathematics
Answer fast this is very ! i need to know how to solve #7
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Ответ:
Ответ:
This means that both lines should be the same length (you've marked them as congruent). Therefore, you can set the two equations equal to one another.
3x=5x-14
You should get a solution of x=7. If you have trouble with that, comment. I was lazy and did it with my graphing calculator, but I can show you how to do it algebraically.
From the drawing, assuming your congruency markings are correct, K is the midpoint of LM. Therefore, LK will be half the length of LM.
As LM looks like it equals 3x, LK would be 3x/2. In the above step, I found that x=7. Plug x unto the equation 3x/2 to get 21/2, which is your final answer.
Ответ:
a)
$4,000 + $960 = $4,960
She has $4,960 in her account at the end of 3 years
b)
i = Prt
r = i/Pt
r = 960 / 4000 * 3
r = 960 / 12000
r = 0.08
Annual interest rate is 0.08 or 8%
c) If 1% greater then r = 0.09 (9%)
i = Prt
i = $4,000 * 0.09 * 3
i = $1, 080
The different: $1, 080 - $960 = $120
She would have $120 more in her account if the interest rate were 1% greater.