Answer:
3,-7
Step-by-step explanation:
Answer:
a = 7 ($1)
b = 8 ($5)
Step-by-step explanation:
a + b = 15 | (-)
1a + 5b = 47
- a - b = - 15
a + 5b = 47
------------------ +
-a + a - b + 5b = - 15 + 47
4b = 32
b = 32 : 4
b = 8
a = 15 - 8 = 7
a. The interest earned will be $36.
b. The account balance will be $336.
Step-by-step Explanation:
Step 1:
The initial amount put into the account was $300.
This account has an interest rate of 4% every year. So we must calculate how much 4% of $300 is.
4% of $300 = 
Step 2:
So for every year, the interest of $12 is added into the account. To calculate total interest we multiply this interest amount and the number of years.
So after 3 years 
So account balance after 3 years
.
So the interest earned is $36 and the account balance is $336 after three years.
1225.
It is also called 35 squared. It is 35X35
The power is how many times you multiply the number by itself.
Angle BEC equals angle AED because there are vertical angles. so angle BEC=56