Question

Question 1. What is the solution to 8/9 =-7 ?
A. 81
B. 36
C. -36
D. -81
Question 2. Which Expression can be written as 9 . (12+7)?
A. 9 + (21+7)
B. (9+12) + (9+7)
C. 9 . 12+7
D. (9.12) + (9.7)
Question 3. Which property is show by 2+5=5+2?
A. Associative Property of Addition
B. Commutative Property of Addition (picked this one)
C. Distributive Property
D. Identity Property of Addition
Question 4. How is the sentence "Six more than x is nine) written as an equation?
A. 6=x+9
B. 6+9=x
C 6 + x= 9
D. 6+9+x=0
Question 5.Which Property is shown by 4 +(5+6)=(4+5) +6
A. Commutative Property of Addition
B. Distributive Property
C. Additive Identify (picked this one)
D. Associative Property of Addition
Question 6. Which symbol will make |-8| ? |-10|
A. > (picked this one)
B. <
C. =
Question 6. What is the solution to Q/-7=6
A. Q=-42
B. Q=-13
C.Q=13
Q=42
Just need help like explaining not given the answers

Answer 1

\[\frac{ B }{ 9 } = -7\]

Answer 2

Problem 1.\[\frac{B}{9}=-7\rightarrow B=-7\times9=?\]
Problem 2. I'm not sure what you mean by the dot in 9.(12+7), but if it means a dot like •, that means multiply. Then you would get \[9\times(12+7)=9(12+7)=\text{ by distribution }(9\times12)+(9\times7)\]
Problem 3. You are right because the Commutative Property is the one that moves numbers around with the same numerical result:\[\text{An example problem: }a+b=b+a\]
Problem 4. "Six more than x is nine"\[\text{"Six more than x" means add 6 to x }x+6\]\[\text{Since we know that equals nine you put = 9 at the end }\]\[x+6=9\]
Problem 5. Wrong, the Additive Identity is "add 0 to a number and you will get the same exact number". The answer is Associative Property of Addition, because you can regroup the numbers and still get the same result.\[\text{Example problem: }(a+b)+c=a+(b+c)\]
Problem 6. An absolute value is the distance the integer is from 0 on a number line. (If you still don't get it just ask)

Problem "6" (7). Isolate the Q and get the answer:\[\frac{Q}{-7}=6\rightarrow Q=-7\times6=?\]

Answer 3

Problem 4 typo:\[\text{"Six more than x" means add 6 to x }\rightarrow x+6\]
If you got confused on Problem 6:\[\text{example: }\left|-a\right|=a\]

Answer 4

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If you can't see the stuff I typed, click this link.

Answer 5

ADDITIONAL EXPLANATIONS:

Problems 1 and 7: When faced with a single variable in an equation, and asked to simplify/solve/evaluate, isolate the variable and simplify the other side of the equation.

Problem 2: Distributive Property is a(b + c)= ab + ac and so on.

Answer 6

where are you all seeing a B in problem 1?

Answer 7

@zzr0ck3r She corrected the 8 to a B in her first comment.

Answer 8

weird because -7*9=-63 is not an option

Answer 9

that is what the equation says I'm going off by what it says just don't give me the answers just explain it

Answer 10

Well, technically... by explaining, we're also giving you the answers, but allowing you to understand and learn at the same time. :]
Because giving direct answers is against the OpenStudy Code of Conduct. ^^