Ella bought 8 keychains. She spent 4 dollars on each KeyChain. Hope this helps
Answer:
the answer is 15.
Step-by-step explanation:
7/12 divided by 2/5 is 35/24
33 years old would be correct
Answer:
ages of the twins are 11 years
Step-by-step explanation:
let the age of the twins each be X
Age of the older sister = X+9
This current year;
(X)(X)(X+9) - (X+X+X+9) = 2378
X³+9X² - 3X-9 = 2378
Solving the polynomial
X = 11
Hence ages of the twins are 11 years
