R/B = 1/4
<span>R = 4B </span>
<span>For every red, there are 4 blues </span>
<span>Let there be x reds and 4x blues (5x counters in all) </span>
<span>P(red,red) = (x/5x)((x-1)/(5x-1)) = 6/155 </span>
<span>(155)x(x-1) = (6)5x(5x-1) </span>
<span>155x^2-155x = 150x^2-30x </span>
<span>5x^2-125x = 0 </span>
<span>5x=125 </span>
<span>x= 25 reds
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The answer is 4 because 2/3 times 6 ( flip 1/6 to multiply) equals 12/3 which equals 4
3x+250-100×2x = 24.5x to 2nd power.
Got this same question earlier in the year.
Answer:
y = -3x - 9
Step-by-step explanation:
Parallel lines have same slope.
y = mx + b
m -> slope & b ->y-intercept
y = -3x - 2
So, slope of the required line = -3
(-4 , 3)
y - y1 = m(x - x1)
y - 3 = -3(x - [-4])
y - 3 = -3(x + 4)
y - 3 = x*(-3) + 4*(-3)
y - 3 = -3x - 12
y = -3x -12 + 3
y = -3x - 9