X + 9 = 16
explanation : he bought nine more coins which made it 16. to find out how many coins he sold you would solve the equation then divide by 2.
Joni’s total interest earned is 0.125% of her investment.
<u>Solution:</u>
Given that
Interest earned by Joni per day = $0.625
Investment done by Joni = $1000
Duration of earning interest = 2 days
Total interest earned = interest earned by Joni
duration of interest earned.
= 0.625
2 = $1.25


So Joni’s total interest earned is 0.125% of her investment.
Answer:
No positive value of n
Step-by-step explanation:
we have to find out for how many positive values of n are both
our-digit integers
Let us consider first cube
we get 4digit lowest number is 1000 and it has cube root as 10.
Thus 10 is the least integer which satisfies four digits for cube.
The highest integer is 9999 and it has cube root as 21.54
or 21 the highest integer.
Considering 3^n we get,
3^10 is having 5 digits and also 3^21
Thus there is no positive value of n which satisfy that both n cube and 3 power n are four digits.
Jessica had no books. Wesley had 2 more books so that means that Wesley has 2 books.