Answer:
I would agree with your answer
Step-by-step explanation:
Though it's kind of comparing apples to oranges as the basis is unclear
I'm ASSUMING both investments occurred during the same time period.
The first one appears to have a ROI of 305/800 = 0.38125
The second one is much muddier
If the investment is cashed out to zero and the total return to you is $900, then the ROI is (900 - 650) / 650 = 0.3846153. This is better than the first return, but just a little bit.
However, if the investment has not been cashed out and your $650 is actually still working and you have received $900 in interest or dividends, then the ROI is 900/650 = 1.384615... which is more than 3.6 times greater return than the first option.
Answer:
x = -41
y = 9
Step-by-step explanation:
Begin by multiplying the top equation by 2
2x = -8y - 10
The second equation requires a little more care.
Start by moving 10y to the right. Normally the y value is on the left, but we are going to be substituting for 2x.
2x = - 10y + 8
What I've done is not the usual practice, but there is nothing wrong with it.
Now since both right sides are equal to 2x, you can substitute for them
-8y - 10 = -10y + 8 Add 10y to both sides
-8y + 10y - 10 = 8
2y - 10 = 8 Add 10 to both sides
2y = 8+10
2y = 18 Divide by 2
y = 18/2
y = 9
Use the second original equation to solve for x
2x + 10y = 8
2x + 10*9 = 8
2x + 90 = 8 Subtract 20 from both sides
2x = 8 - 90
2x = - 82 Divide by 2
x = -822/2
x = - 41
It's 34 because if u divide your numbers and you get your answer and you divide answer by first number
Answer:
-4w-21
Step-by-step explanation:
