Match the vocabulary word with the correct definition.
1. multiplying diagonally across the equal sign in a proportion ratio
2. a statement that says two ratios are equal proportion
3. a comparison of two quantities or numbers as a quotient cross multiplication

x = 10.1

step-by-step explanation:

all of the angles of a tirangle add up to 180º

180 - 65 = 115 (since we already know the value of one angle)

(2x + 7) + (8x + 7) = 115

(combins like terms) 10x + 14 = 115

(isolate the variable subtract 14 from both sides): 10x = 101

(find the variable divide both sides by 10): x = 101/10

x = 10.1

1,645,493,059.35

step-by-step explanation:

kbmflmklbhml; bmlzb; bdhzz

step-by-step explanation:

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,