The difference of two complementary angles is 68 degrees. find the measures of the angles.

11 and 79 degrees.

Step-by-step explanation:

We can figure it out by making a equation system:

x + y = 90 (complementary angles)

x - y = 68 (difference between the two angles)

From 1st equation, we ge x=90-y. Let 'sreplace into the 2nd equation:

(90- y) - y = 68

90 - 2y = 68

-2y = 68 - 90

y = -22/-2

y = 11

Now, x will be y+68, so x=79

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.