The sum of two numbers is 27. Their difference is 1. Find the smaller number.

13

Step-by-step explanation:

We say a + b = 27 and and a - b = 1 where b is the smaller number.

a = 27 - b so (27 - b) - b = 1

2b = 26 so b = 13

Step-by-step explanation:

Because the difference of the two numbers is 1, add 1 to 27 to get 28.  Then, divide 28/2 to get the larger integer, 14.  Then subtract one to get the other, 13.

Thus, the numbers are 13 and 14.

Hope it helps :D

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

option: d is correct

step-by-step explanation: