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faust18 [17]
3 years ago
13

Carla invests $500 in an account that earns 4% annual interest. In approximately how many years will she have doubled her invest

ment?
A 14

OB. 18

OC 21

OD 24
Mathematics
1 answer:
Allisa [31]3 years ago
8 0

Answer:

od

Step-by-step explanation:

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What percent of 30 is 18
Marina CMI [18]
18 is 60 percent of 30. 3 percent is 10 percent of 30 so 3 x 6 equals 18.
4 0
2 years ago
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Over the last week,the daily low temperatures in degrees Fahrenheit have been -4,6.2,18 1/2,-5.9,21,-1/4,1.75.List these numbers
Anit [1.1K]

-5.9, -4.6, -1/4, 1/2, 1.75, 2, 18, 21.

8 0
3 years ago
What is 9/10-6/10 or can you not do it?
Olin [163]

Answer:

3/10

Step-by-step explanation:

9-6=3

both fractions have the same denominator so they keep it

9/10 - 6/10 = 3/10

<h3>3/10 is also 0.33</h3>
5 0
3 years ago
Write an exponential model given the points ( 7, 12 ) and ( 8, 25 ). Round to the nearest hundredth.
inna [77]

Answer:

The exponential model is y = 0.07\cdot e^{0.73\cdot x}.

Step-by-step explanation:

The exponential model can be modelled by the following mathematical expression:

y = A\cdot e^{B\cdot x} (1)

Where:

x - Independent variable.

y - Dependent variable.

A, B - Coefficients.

If we know that (x_{1}, y_{1}) = (7,12) and (x_{2}, y_{2}) = (8,25), then we get the following system of equations:

A\cdot e^{7\cdot B} = 12 (2)

A\cdot e^{8\cdot B} = 25 (3)

If we divide (3) by (2), we calculate the value of B:

e^{B}=\frac{25}{12}

B = \ln \frac{25}{12}

B \approx 0.734

And by (2), we determine the value of A:

A = 12\cdot e^{-7\cdot B}

A = 0.0704

The exponential model is y = 0.07\cdot e^{0.73\cdot x}.

4 0
3 years ago
Ivana works at a department store selling perfume and makeup. She earns $375 per week and 4% commission on her sales. If Ivana's
Aleks04 [339]

Answer:

<h2>$1380.2</h2>

Step-by-step explanation:

Step one:

given data

weekly earnings= $375

Commission is 4% of sales.= 0.4

supposing sale is x, and the total earning is y

the expression for the total earning will be

y=375+0.4x

Step two:

for x= 2513, y will be

y=375+0.4(2513)

y=375+1005.2

y=1380.2

<em><u>Hence  her total earnings for the week will be $1380.2</u></em>

3 0
3 years ago
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