a local hamburger shop sold 577 hamburgers and cheeseburgers
on Tuesday. they sold 73 fewer cheeseburgers than hamburgers.how many hamburgers did they sell?

9.)a=1/2h(a+b) h is the height of a trapezoid, and a and b are the lengths of the upper and lower base.solve for a

10.)The length of a rectangle is 2 inch longer than its width. if the perimeter of the rectangle is 40 inch find its area.

11)solve for x.

triangle with degrees of : x degree,89 degree and 149 degree, what is x degree.

12.)9= -3/8t

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Here are the solutions.

checking home work 12 problems
1.) t + 4=-9
or t + 4 - 4 = - 9 -4 (subtracting 4 from either side)
or t = - 13

2.) 98=7z
Or (dividing by 7 on either side)
Or 14 = z
Or z = 14

3.) 37 = y/5 + 14
Or 37*5 = (y/5)*5 + 14*5 (multiplying by 5 on either side)
Or 185 = y + 14*5
Or 185 - 70 = y +70 - 70 (subtracting 70 from either side)
Or y = 115

4.) 2/7x-4/3=-3/2

Or
(LCM of the denominators7, 3 and 2 is 42 hence multiplying each term by 42)
Or
Or 12x = - 63 + 56
Or 12 x = -7
Or

5.) 8(x -8) - 5x = - 37
Or 8x - 8*8 - 5x = - 37
Or 8x - 64 - 5x = - 37
Or 8x - 5x = - 37 + 64
Or 3x = ...

Solution Summary

Some problems on simple equations in one variable.

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Simple and Multiple Linear Regression. ... of the relationships between the dependent variable and each explanatory variable. ... Determine regression equation. ...

... processing tool, work through three simple regression analyses ... with values for the regression equation, slope, y ... in the AIU data set as the dependent variable. ...

... Two simple regression analysis problems and one multiple ... The regression equations obtained are used for predicting the value of the dependent variable for the ...

... can be explained by the regression equation Standard error ... gives detailed steps on performing simple regression and ... Y variable cell range X variable cell range ...

... the following results obtained from a simple linear regression ... 93.45% of variation of the dependent variable can be explained by the regression equation. ...