Well we know that total percentages always equals 100 so x + 45 = 100. You should get x = 55%
Answer:
1/3
Step-by-step explanation:
2nd one
1st is 40/100 = 4/10 =40%
2nd is 52/100 =26/50 = 52%
3rd is 24/100 = 6/25 = 24%
4th is 9/100 = 9/100 = 9%
Answer:
X - 5 < or = 14
Step-by-step explanation:
The simplified way to write this is
X < or = 19
<h3>
Answer:</h3>
B) (x + 7)^2 = 20
<h3>
Step-by-step explanation:</h3>
You can subtract 34 from the original equation to get
... x^2 +14x = -29
Now, you can add the square of half the x-coefficient, and you will have ...
... x^2 +14x +49 = -29 +49
... (x +7)^2 = 20 . . . . . . matches selection B
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<em>Comment on answer choice A</em>
The question asks for the form (x -p)^2 = q, but that does not mean that p must be positive. Here, p=-7 and q=20.