Muliply 65 and 0.12 and get 7.8
Subtract 65-7.8 to get marked down price
57.2 is the price after markdown
Let the numbers be:
a, a+b, a+2b
mean of the numbers is:
(a+a+b+a+2b)/3=10
(3a+3b)/3=10
a+b=10
thus second term is 10
The sum of square will be:
((10 - b)² + 10² + (10 + b)²<span>) / 3 = 394
</span>(100 - 20b + b² + 100 + 100 + 20b + b²<span>) / 3 = 394
</span><span>(300 + 2b</span>²<span>) / 3 = 394
</span>(150+b²)=591
b²=441
b=-21,21
thus the numbers will be:
10-21, 10, 10+21
=-11,10,31
Number 4 a rectangular dodecagon
Ten times ten equals one hundred, if that's what you are asking for.
Answer:it will take 5 years
Step-by-step explanation:
Initial amount deposited into the account is $500 This means that the principal is
P = 500
It was compounded quarterly. This means that it was compounded 4 times in a year. So
n = 1
The rate at which the principal was compounded is 5.6%. So
r = 5.6/100 = 0.056
The formula for compound interest is
A = P(1+r/n)^nt
A = total amount in the account at the end of t years. A is already given as $750
Therefore,
750 = 500 (1+0.056/4)^4×t
750 = 500 (1+0.014)^4t
750 = 500 (1.014)^4t
(1.014)^4t = 750/500 = 1.5
Take root 1/4 of both sides
(1.014)^4t ×1/4 = 1.5^1/4
(1.014)^t = 1.107
t = 5 years
