It just depends but usually it is an inverse for the original equation that you were given
Let be Z the money ;
We have ( 40 / 100 ) x Z = $85 ;
( 4 / 10 ) x Z = $85 ;
( 2 / 5 ) x Z = $85 ;
Z = $( 85 x 5 ) ÷ 3 ;
Z = $425 ÷ 3 ;
Z = $141,66 ≈ $142 ;
Here is the interest equation: I=prt
Where I is interest, p is principal, r is rate and t is time(in years).
Substitute with known values.
I= prt
I= 10000(.05)(1 and 1 over 4)
I= 625
Answer: $625 for 15 months.
240 for # 2 because 6 times 4 times 10 is equal to 240
I am still working on others
Answer:
He should buy 4 boxes
Step-by-step explanation:
25 divided by 8 is 3.125, but you want to have enough so the least amount you can buy is 4.
