Try these dimensional analysis problems. Note that one tonne(or metric ton) is equal to 1,000 kilograms. 1. The amount of mismanaged plastic globally is 31.9 million tonnesper year. If the US contributes .022 million tonnesper month, what percentage of the global mismanaged plastic comes from the US? Show your work. 2. How many kg of plastic is mismanaged by the US every month? 3. 27.7% of the global mismanaged plastic per year comes from China. How many kg are they producing per month?

replace   c   with   a   and simplify.

a = c , b = a, q = n , 2 , a = c , 900 b= a , 700 , q = n , 600 , 2 = b o t h , b = a , q = n

do you need with anything?

if triangle abc is congruent to triangle def, their interior angles are congruent, because congruent parts of congruent triangles are congruent (cpctc).

that means ∠d is congruent to ∠a; ∠d is equal to 8x - 2.

interior angles of all triangles add to equal 180 degrees, so you can set the sum of these interior angle values equal to 180 and solve for x.

180 = (8x - 2) + 22 + 72

180 = 8x - 2 + 22 + 72

180 = 8x + 92

88 = 8x

11 = x

x = 11