6 of 10 © Stephen was thinking of a number. Stephen doubles it, then adds 11 to get an
answer of 47.7. What was the original number?

18.35

Step-by-step explanation:

This is a question which requires you to work backwards.

Divide  means multiply and vice versa

Addition  means subtract and vice versa

First, we find the number before 47.7.

47.7-11=36.7

Secondly, we find the number before 36.7, aka the original number.

36.7/2=18.35 (/ sign means divide)

answer: procent 54 wynosi 33,33%

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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