Answer: The answer is (B) 2x + 3(3x – 5) = 51
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Step-by-step explanation: We are given three options and we are to select which choice shows the result of substituting 3x – 5 into the second equation for y.
So, y = 3x - 5.
Since the standard form of a linear equation i two variables is ax + by = c, so the second equation as given in the options must be of the form 2x + 3y = 51.
If we substitute y = 3x - 5, then this equation becomes
2x + 3(3x - 5) = 51.
Thus, (B) 2x + 3(3x – 5) = 51 is the correct option.
The equation of the line that has a slope of 3 and a y-intercept of -2 is:
<span>Y=3x-2, or B.</span>
Use the sine function here.
x
--- = sin 20 degrees = 0.349, so x = 10(0.349) = 3.42
10
x/7 has to be proportionate to 9.2/16.1 so find out how 7 relates to 16.1
16.1/7=2.3 and 7*2.3=16.1
then apply it to x and 9.2
9.2/2.3= 4 and 4*2.3=9.2
So, x=4
