Answer:
The sum of x and y is 8.
Step-by-step explanation:
x+2y=10
x-2y=2
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2x = 12, so x = 6. Substituting 6 for x in the 2nd equation, we get:
6 - 2y = 2, or
4 = 2y, or y = 2. The solution is therefore (6, 2).
The sum of x and y is 6 + 2 = 8 (answer)
Answer:
Notice that 2 sheets of stamps will NOT be enough because 2 sheets have a total of 40 stamps and NOT 47
Step-by-step explanation:
Hey! I'll provide you the answers!
First you want to simplify the equation using cross-multiplication.
Finally, you would want to divide both sides by 15.
n = 161
Answer: he will have $12720 after 15 years
Step-by-step explanation:
We would apply the formula for determining compound interest which is expressed as
A = P(1 + r/n)^nt
Where
A = total amount in the account at the end of t years
r represents the interest rate.
n represents the periodic interval at which it was compounded.
P represents the principal or initial amount deposited
From the information given,
P = $8000
r = 3.1% = 3.1/100 = 0.031
n = 12 because it was compounded 12 times in a year.
t = 15 years
Therefore,
A = 8000(1 + 0.031/12)^12 × 15
A = 8000(1 + 0.00258)^180
A = 8000(1.00258)^180
A = $12720
