The RF is 9. You could go to Easycalculations.com/statics/cumulative/relativefrequency to double check :)
The other endpoint would have to be (-5,2), going off the definition of a midpoint. Since 3 is for units to the right of -1, that would mean that the other end point would have to be 4 units to the left, which is -5.
400+30+8 is how you put 438 in standard form.
Percent means per 100
multiply .015 x 100 (move decimal point 2 places to the right(
answer is 1,5%
hope this helps
Answer:
The person invested $3500 at 7% and $2500 at 5%
Step-by-step explanation:
We can say that
because the investment is equal both in one as in another, where x is the income from the investment.
Solving the equation we have:

Then to get the incomes:
At 7%: 
And at 5%: 
Finally we can demonstrate the answer because the income at 7% + income at 5% are 3500+2500=$6000