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kicyunya [14]
3 years ago
13

Melissa has $1,000.00 to invest for 5 years. She can choose either simple interest at 6.4% interest, or compound interest at 12.

8% interest, compounded annually.
Which is the better investment?

A. A compound interest investment would be better, because Melissa would earn $826.19 in compound interest.

B. A simple interest investment would be better, because Melissa would earn $826.19 in simple interest.

C. A simple interest investment would be better, because Melissa would earn $320.00 in simple interest.

D. A compound interest investment would be better, because Melissa would earn $320.00 in compound interest.
Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
6 0

Answer:

A

Step-by-step explanation:

simple interest

1000 x 6.4% x 5 = 320

compound int

1000(1+12.8/100)^5 - 1000=826.188

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bixtya [17]

Answer:

The answer is B

Step-by-step explanation:

If you look at the graph, you can look at number of tickets and see that to get 10 tickets, you would get charged 80 dollars not 88, so the answer is B

8 0
3 years ago
What is the solution to the system graphed below?
iVinArrow [24]

Answer:

(-4,-1) is the answer unless your asking for an actual equation

5 0
3 years ago
Evaluate the function found in the previous step at X =-3
babunello [35]
x-5y=-4x-2y

In order to evaluate the given function at x = -3, simply replace "x" in the function with -3 and solve.

-3-5y=-4(-3)-2y

<em>Multiply -4 and -3 in the function above.</em>

-3-5y=12-2y

<em>Add 3 on both sides of the equation.</em>

-3-5y+3=12-2y+3-5y=15-2y

<em>Add 2y on both sides of the equation.</em>

-5y+2y=15-2y+2y-3y=15

<em>Divide both sides of the equation by -3.</em>

\frac{-3y}{-3}=\frac{15}{-3}y=-5

Therefore, at x = -3, the value of y = -5. Hence, f(-3) = -5.

Answer:

f(-3) = -5

<em />

7 0
1 year ago
shirley owns a diner. she decides to charge $1.50 for 2 egga and one piece of toast a $.90 for one egg and one piece of toast. w
charle [14.2K]

Answer:

1 toast costs $0.30 and 1 egg cost $0.60

Step-by-step explanation:

Let price of 1 egg be  e  and price of 1 toast be  t

<u>"$1.50 for 2 eggs and one piece of toast":</u>

We can write  2e+t=1.50

<u>"$.90 for one egg and one piece of toast":</u>

We can write  e+t=0.90

Now, we can solve the first equation for t and substitute that into 2nd equation and solve for e:

t=1.50-2e\\Also\\e+t=0.90\\Substituting:\\e+(1.50-2e)=0.90\\e+1.50-2e=0.90\\-e=0.90-1.50\\-e=-0.6\\e=0.6

Now using the value of e (0.6) and putting it back in the first equation, we will get t:

2e+t=1.50\\2(0.6)+t=1.50\\1.2+t=1.50\\t=1.50-1.20\\t=0.30

Hence, 1 toast costs $0.30 and 1 egg cost $0.60

8 0
3 years ago
a test consists of 10 multiple choice . to pass the test a student must answer exactly 5 of the questions correctly. if a studen
s2008m [1.1K]

Complete question :

A test consists of 10 multiple choice questions. Each question has 5 choices. To pass the test, a student must answer at least 6 questions correctly. If a student guesses on each question, the probability of getting it right is 20%. What is the probability that the student will pass the test?

Answer:

0.006370

Step-by-step explanation:

Number of options = 5, with only one correct,hence, p = 1/5 = 0.2

Number of questions = 10

Number of correct answers required to pass = 6

Using binomial distribution formula :

P(x =x) = nCx * p^x * (1 - p)^(n - x)

p = 0.2 ; 1 - 0.2 = 0.8

n = 10 ; x = 6

P(x ≥ 6) = p(6) + p(7) + p(8) + p(9) + p(10)

The formula above can be used to obtain the individual probabilities then taking the sum or we can obtain the solution using a calculator ;

Using a binomial probability distribution calculator with the parameters given :

P(x ≥ 6) = 0.0063693824

= 0.006370 ( 4 decimal places)

3 0
3 years ago
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