Its c because yea it just is udk how to explain it
Addition problems that need annex zeros:
Choice A. - 0.54 + 12.1
Choice C. - 25.59 + 1.2
Choice D. - 23.04 + 124.1 + 34.06
Hope I was able to help! :)
Answer:
Step-by-step explanation:
(2x^2-x)+(x^2+3x-1)
2x^2-x+x^2+3x-1
x^2+3x-1
5x^2+2x-1+(4x^2-x+2)
5x^2+2x-1+4x^2+x-2
9x^2+6x-3
(3x^2+2x+1)+(x^2-1)
3x^2+2x+1+x^2-1
4x^2+2x
-x^2-1+(4x^2-x)
-x^2-1+4x^2-x
3x^2-1-x
<u>Answer:</u>
Equivalent expression of (-11x+31y) - 2(-x + 5y) is -9x +21y Hence option C is correct
<u>Solution:</u>
Given expression is (-11x+31y) - 2(-x + 5y)
Need to find equivalent expression from four given option.
Let’s first simplify the given expression
(-11x+31y) - 2(-x + 5y)
On opening the brackets we get
-11x + 31y + 2x -10y
Now bringing similar terms together and performing appropriate operation, we get
-11x + 2x + 31y + -10y
Taking common terms out we get,
=> (-11 + 2) x + (31 -10) y
= -9x +21y
Therefore Equivalent expression of (-11x+31y) - 2(-x + 5y) is -9x +21y.
B. 5:10 because 15-5=10 which is the number of pencils with erasers and the 5 left are the amount of pencils which are missing an eraser
