Which expressions are equivalent to 5p+3p+(-9)5p+3p+(−9)5, p, plus, 3, p, plus, (, minus, 9, )? Choose all answers that apply:
2 answers:
Answer:
Option B.
Step-by-step explanation:
The given expression is
We need to find an expression which is equivalent to the given expression.
Combine like terms.
The simplified form of given expression is 8p-9. So, option A is incorrect.
In option B, the given expression
Using distributive property, we get
Combined liker terms.
It is same as the simplified form of given expression.
Therefore, the expression 3(p+(-3))+5p is equivalent to the given expression and correct option is B.
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Answer:
a) There are Total 25 Question on the test.
Each question is worth 4 points.
b) Your friend answered 19 questions correctly.
Step-by-step explanation:
Given:
Question answered =24
Percent earn = 96%
Total point test = 100
We will first solve for part a.
We need to find Total Question on the test and Points worth each question.
Now We know that percent earn is equal to Question answered divided by Total Question on test and ten multiplied by 100.
Framing in equation form we get;
Substituting the given values we get;
Total question on test =
Hence There are Total 25 Question on the test.
Now we will find each question worth points.
each question worth points can calculated by dividing Total Point test with total number of question on the test.
Framing the equation we get;
each question worth points =
Hence Each question is worth 4 points.
Now Solving for part b.
Given:
Percent earn by friend = 76%
we need to find number of question answered correctly.
question answered correctly =
Substituting the values we get;
question answered correctly =
Hence Your friend answered 19 questions correctly.
The first one is m= -5 (D)
The second one is x= -3 (A)
The second one is x= -3 (A)