Answer:
84+(x+9)=180
Step-by-step explanation:
84º+(x+9)º = 180º, so x+93 = 180, so x=87. Hope this helps!
Answer:
x = (180-147)/3
x = 11
Step-by-step explanation:
Answer:
The answer is -2 points per question
:)
For those in need of an explanation, she missed 11 problems and got 22 points taken off. Divide 22 by 11 and you get two.
I hope you all found this helpful and if you need a better explanation or have a question, feel free to comment down below and ill get back to you as soon as possible. :)
Answer:
m +2m +(2m -6) = 19
Step-by-step explanation:
m = number of books sold on Monday.
2m = number of books sold on Tuesday, twice as many as Monday.
2m -6 = number of books sold on Wednesday, 6 fewer than Tuesday.
The total number of books sold on the three days gives the equation you're looking for:
m +2m +(2m -6) = 19
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<em>Additional comment</em>
Solving this gives ...
5m = 25 . . . . add 6
m = 5 . . . . . divide by 5
5, 10, and 4 books were sold on the three days.
"zeros" are solutions for x that make the equation equal to zero.
(x - 8)(x + 8)(x - 1) = 0