Answer:
E.
the product of seven and the difference of b minus two
X2 - 10x = 7
You move the constant to the right which looks like: - 10x = 7 - 2
- 10x = 5
Then you divide both side by -10. The answer is:
X = -1/2 OR x = -0.5
We have 240/40 = total students/ 100
Total students are in the middle school is: (240 x 100)/ 40 = 600 students
The type of reasoning that Vivian used into solving the
equation is the deductive. This type of reasoning is able to describe on how
the equation is done and this could be seen in the given scenario above as she
was able to show the steps in obtaining the correct answer.
FIRST SOLUTION!
first number = x
second number = x+2
third number = x+4
fourth number=x+6
fifth number=x+8
sixth number=x+10
seventh number=x+12
add all of those up and combine like terms to get 7x+42=357. Now subtract 42 from both sides to get 7x=315. Next, divide both sides by 7 to get x=45. To get the numbers, plug in 45 for x.
Your numbers should be 45,47,49,51,53,55, and 57.