MATHEMATICS HIGH SCHOOL

Which is the solution to the equation 2x+ 4= -8? A.) x= -2
B.) x= -8
C.) x= -6
D.) x= -1

Answers

Answer 1
Answer: x = -6


2x + 4 = -8

Subtract 4 to from sides
2x = -12

divide both sides by 2
x = -6
Answer 2
Answer:

The correct answer is C. -6

2 x -6 + 4 = -8

Hope this helps

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What is the answer to this equation? 2x+2x+2=4x+2

Answers

Answer:

0

Step-by-step explanation:

You start off with 2x + 2x + 2 = 4x + 2.

You would then add like terms, as shown below.

4x + 2 = 4x + 2

Now, you would subtract 4x from both sides, and that would leave you with:

2 = 2

You would now subtract 2 from both sides, which would now leave you with 0.

A company made a profit of $25,000 over a period of 5 years on an initial investment of $10,000. What is its annualized ROI?

Answers

Given:
Initial Investment = 10,000
Total profit = 25,000
Total number of years = 5 years

Return on Investment = Gain from Investment - Cost of Investment
                                                   cost of investment

ROI = (25,000 - 10,000) / 10,000 = 15,000/10,000 = 1.5 x 100% = 150%

ROI = 150% ÷ 5 years = 30% per year.

Answer:

50%    I got it right on the test

Step-by-step explanation:

The profit was 25,000, not the final amount. So, you have to add that 25,000 to the 10,000

ROI: (35,000 - 10,000) / 10,000  * 100 = 250%

annualized ROI:  250% / 5 years = 50%

The sum of three is 45. The second of the Three numbers is three more than twice the first number X. The third number is two more than the first number X. Which equation can be used to solve for the first number X

Answers

Answer:

see explanation

Step-by-step explanation:

the first number is x

the second number is 2x + 3

the third number is x + 2

sum the 3 numbers and equate to 45

the equation to solve for x is then

x + 2x + 3 + x + 2 = 45 ( simplify left side )

4x + 5 = 45 ( subtract 5 from both sides )

4x = 40 ( divide both sides by 4 )

x = 10

the first number is 10

Given the following information, choose the brand that is the better buy. Brand A: $1.25 for 10 ounces Brand B: $1.47 for 12 ounces Brand C: $1.68 for 14 ounces Brand D: $1.84 for 16 ounces

Answers

brand D is correct bc it makes more since
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Twenty-four blue socks and twenty-four red socks are lying in a drawer in a dark room. What is the minimum number of socks you need to pull out of the drawer so that you are sure to have at least two blue socks

Answers

Answer:

26 socks

Step-by-step explanation:

There are a total of 48 socks here. Let us assume you pulled out 24 socks at a go and all are red. Now, you would have exhausted the number of red socks here. You would be left with only blue socks which you can pull one after the other to give a total of  26 socks pulled out to have 2 blue socks at least.

SOLVING SYSTEMS OF EQUATIONS BY SUBSTITUTION.

1. 2x+3y=1
-3x+y=15

Answers

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