Which of the following rational numbers is equal to 4 point 5 with bar over 5?

40 over 9, 41 over 9, 42 over 9, 43 over 9 40 over 9 41 over 9 42 over 9 43 over 9

Step-by-step explanation:

Let

Now, Multiply 10 to both the sides , we get

Subtract (1) from (2) , we get

Divide 9 on both the sides , we get



Hence, the required rational number is

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

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