Answer:
$60
Step-by-step explanation:
We can create a proportion to find the markup from original price to the marked up price. A proportion is an equation where two ratios are set equal to each other. We create two fractions using the prices and percents. It is marked up by 20% so we pay 120% of $50.
We begin solving by cross multiplying numerator to denominator of each fraction.
Answer:bnhgfvdhjhygrthsyetrg
Step-by-step explanation:hsjedrhfydeyhreres
C. is the correct answer
(7 x 7 = 49)
Answer:
(13 + x) * (15 + x) = 390ft²
18.8 feets ; 20.8 feets
Step-by-step explanation:
Given that:
Initial dimension of patio :
Length (L) = 13 feets
Width ( W) = 15 feets
Initial Area of rectangle :
Length * width = 13 * 15 = 195 feets²
To double the initial area of rectangle :
2 * 195 ft² = 390 ft²
Hence, area of proposed patio = 390ft²
Area of proposed patio:
(13 + x) * (15 + x) = 390ft²
195 + 13x + 15x + x² = 390
x² + 18x - 195 = 0
Using the quadratic equation solver:
X = - 33.77 = - 33.8 or
X = 5.77 = 5.8
X cannot be negative,
Hence, x = 5.8
Length and width of new patio:
Length = 13 + x = 13 + 5.8 = 18.8 feets
Width = 15 + x = 15 + 5.8 = 20.8 feets
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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