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anyanavicka [17]
2 years ago
7

your savings account earns simple interest of 6% per year. last year you earned 12.55 in interest. how much money was in the sav

ings account at the start of the year? round your answer to the nearest penny
Mathematics
1 answer:
frosja888 [35]2 years ago
6 0

Answer:

$209.17

Step-by-step explanation:

If you take the interest of $12.55 and divide it by 0.06% (opposite operations because the start money is START MONEY times 0.06%) you will get the answer of $209.1666666 which rounds up to $209.17

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Two fish are put in a man-made lake with no other fish in it. Each month, the fish population triples. Which model and equation
aleksandr82 [10.1K]

Answer:

Step-by-step explanation:

The basic model for this growth is the exponential function:  y = a(b)^c, where a is the initial value, b is the growth rate and c is the time.

Here we have P = fish population = (2 fish)(3)^t

8 0
4 years ago
Jacob has 20 marbles 4 red 6 blue 2 green and 8 yellow. What’s the probability he will pull a red first then a green marble?
disa [49]
2green/20marbles
2/20
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5 0
3 years ago
Read 2 more answers
It cost $36.75 for 3 tickets to visit the science center. It cost $51 for tickets for 4 tickets to visit the zoo. Which attracti
jonny [76]

Answer:

It would cost more to go to the zoo by $6

Step-by-step explanation:

The total amount that each attraction costs can be given by;

<em>Science center</em>

Total cost at the science center=cost per ticket×number of tickets

where;

Total cost at the science center=$36.75

Cost per ticket=c

Number of tickets=3 tickets

Substituting;

36.75=c×3

c=(36.75/3)=12.25 per ticket to go to the science ticket

For 12 students, total cost at the science center=(12.25×12)=$147

<em>Zoo</em>

Total cost at the zoo=cost per ticket×number of tickets

where;

Total cost at the zoo=$51

Cost per ticket=d

Number of tickets=4 tickets

Substituting;

51=d×4

d=(51/4)=12.75 per ticket to go to the zoo

For 12 students, total cost at the zoo=(12×12.75)=$153

Total zoo cost-Total science center cost=(153-147)=$6

It would cost more to go to the zoo by $6

7 0
3 years ago
Choose the equation and the inequality needed to answer this question.
Svet_ta [14]
E is the answer. In order for Trevor to make more than 180, the number of total hours he works has to be greater than (>) $180. French hours are $15 an hour represented by 15x and ice cream hours are $10 an hour represented by 10y. So 15x+10y>180.
4 0
3 years ago
Please help please really need help please
just olya [345]

Answer:

x = 1

y = -2

Step-by-step explanation:

5x - 2y = 9 -----------(I)

2x + 7y = -12 --------------(II)

Multiply (I) by 7          35x - 14y = 63

Multiply (II) by 2         <u>4x + 14y  = - 24</u><u>  </u> {Now add and thus y will be eliminated}

                                  39x         =      39

                                          x = 39/39

x = 1

Plugin x = 1 in equation(I)

5*1 - 2y = 9

5 -2y = 9

    -2y = 9 -5

    -2y = 4

        y = 4/-2

        y = -2

8 0
3 years ago
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