What equals 3 3/4 + 1 1/4

The answer is 5.

Step-by-step explanation:

Convert your mixed numbers to fractions.

Then your initial equation becomes:

15 5/4 + 5/4

Now you apply the fraction formulas for addition.

(15x4)+(5x4)

4x4

60+20

16

= 80/16

Then we simplify and we have 5.

area of part 1:

a1=base*height/2=(8+2)*(8-2-2-1)/2=10*3/2=15 ft^2

area of part 2:

a2=length*width=(8+2)*1=10 ft2

area of part 3:

a3=length*width=8*2=16 ft2

total shaded area : a1+a2+a3=41 ft2

total area of the reactangle : a=16*8=128 ft2

total area of the nonshaded region : 128-41=87 ft2

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints