The time it will take for the investment to grow to $4500 is 11.97 years
<h3>Compound interest</h3>
The formula for calculating the compound interest is expressed according to the formula
P(t) = P(1+r/n)^nt
Given the following parameters
P0 = $3000
rate = 3.4%
time = t
P(t) = 4500
n = 4
Substitute
4500 = 3000(1+0.034/4)^4t
45/30 = 1.0085^4t
1.5 = 1.0085^4t
ln1.5 = 4tln1.0085
4t = ln1.5/ln1.0085
4t = 47.904
t = 11.97
Hence the time it will take for the investment to grow to $4500 is 11.97 years
Learn more on compound interest here; brainly.com/question/24924853
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Answer:
The interest earned in a year was $1080.
Step-by-step explanation:
Since the money was invested at a simple interest rate, then the amount earned in one year is given by the following formula:
M = C*r*t
Where M is the amount earned, C is the amount invested, r is the rate of interest and t is the time elapsed. Applying the data from the problem, we have?
M = 20000*(5.4/100)*1
M = 20000*0.054
M = 1080
The interest earned in a year was $1080.
Perpendicular lines have opposite, reciprocal slopes. I'll show you 2 ways to solve.
y - (-4) = (-1/2)(x - 8)
y + 4 = (-1/2)x + 4
y = (-1/2)x
orrrr...
-4 = (-1/2)(8) + b
-4 = -4 + b
b = 0
Well, we don't write "+ 0" because that's just extra work.
y = (-1/2)x
Note if you see an equation like this, know that b (our y-intercept) is 0. If you see something like y = 7, then the slope is 0, but 0 times our x-value would equal 0 and that's also unnecessary.
Please mark brainlest
To estimate, you can round each decimal to the nearest whole number, and then add them up together to get a number close to the real answer.
I hope this helps! :)
S= 70w + 750
s(19) = 70w x 19+350= 1680
so its 1680
