Okay First,
Start with the given equation <span>Subtract from both sides
Rearrange the equation
Divide both sides by
Break up the fraction
Reduce
Looking at we can see that the equation is in slope-intercept form where the slope is and the y-intercept is Since this tells us that the y-intercept is .Remember the y-intercept is the point where the graph intersects with the y-axis
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We let x be the length (in minutes) of a certain science class. 65% of this period is spent with the experiment which lasted for about 52 minutes. Mathematically, this can be expressed as,
52 = (0.65)(x)
The value of x from the generated equation is 80. Thus, the science class is 80 minutes long.
The correct answer is: H.
The two angles are vertically opposite when their vertexs share a common point on a set of two lines that cross.
2x + 8 = 70 Subtract 8 from both sides
2x + 8 - 8 = 70 - 8 Combine
2x = 62 Divide by 2
2x/2 = 62/2
x = 31 <<<<< Answer
