Being that there is no equal sign in either of these, you cannot tell. It is hard to figure out what is equal to what. If the equal sign is in the right spot on each of these, they would be.
8x + 7y = 1
-40x = 35y + 1
-1
8(1+5x) +5 = 13+5x => 8+40x + 5 = 13 +5x => 13+40x = 13+5x => 13-13+40x = 13-13+5x => 40x = 5x => 40x - 5x = 0 => 35x = 0 => 35x/35 = 0/35 => x = 0
its 1 9 5
Just remember the basic rule : When dividing by a fraction, invert the fraction and multiply. 40x/64y ÷ 5x/8y = 40x/64y * 8y/5x = 320xy/320xy = 1
35 + 40x + 5x2 = 5(7 + 8x + x2) = 5(7 + x)(1 + x)
For x-2x= 3x-43x+1 x-2x= -x and 3x-43x+1 = -40x+1 so -x= -40x+1 subtract -x from both sides 0= -39x +1 -1 = -39x so 1=39x so x=1/39
the line is parallel to y=1/3x-1
Parallel resistors act like a resistor smaller than the smallest parallel resistor. Calculate as 1/(1/R1+1/R2+1/R3...)
40x(1-0.15)=40x0.85=34 34 is the answer
(2x+1)(2x+3) when factored
trapezoid
There are two pairs of parallel sides in a rectangle - 1 pair of lengths, and 1 pair of widths.Therefore, 4 parallel sides!