Answer:
8, 10
Step-by-step explanation:
Multiplying the equation by the product of the denominators, we have ...
40(x+2) +40x = 9x(x+2)
80x +80 = 9x^2 +18x . . . . eliminate parentheses
9x^2 -62x -80 = 0 . . . . . . put in standard form
9x^2 -72x +10x -80 = 0 . . . prepare to factor by grouping
9x(x -8) +10(x -8) = 0 . . . . . factor pairs of terms
(9x +10)(x -8) = 0
Solutions are ...
x = -10/9 and x = 8
The integers are 8 and 10.
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<em>Comment on the attachment</em>
I find a graphing calculator to be a nice tool for solving these. It finds zeros easily, so writing the equation so it equals zero is a useful first step.
25% percent
10/40 is also 1/4 simplified.
1/4 as a fraction is 25%, 25 times 4 equals 100.
<u>OR</u>
Use 1/4, but divide 1 by 4(fraction is also division)
You get 0.25
Turn this into a percent by moving the decimal point to the right 2 times.
The answer is 25%
Answer:
[1800-100(12)]/12 = (1800-1200)/12 = 600/12 = 50
Step-by-step explanation:
-22-x=5+6x+9
-6x-x=22+5+9
-7x=36
x=5.142
Answer: 12√2
Step-by-step explanation:
This is a 45-45-90 triangle. In this triangle, a and b are equal lengths, therefore hypotenuse, c, is x√2.
Since a and b is 12, c is 12√2.