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masya89 [10]
3 years ago
13

Rosalina just started a new job. She has $500 in her bank account. Every week, she deposits $40 into her bank account. Write an

expression to represent how much Rosalina has in her account at any given time using x to represent the number of weeks. please help!!!​
Mathematics
2 answers:
Mrrafil [7]3 years ago
8 0

Answer:

10.14 years

Step-by-step explanation:

The following equation describes the percentage of all eligible voters that are registered to vote as a function of time:

V=100-30e^{-0.04t}

The time 't' for which V(t) = 80 is the amount of years required for the percentage of registered voters to reach 80%:

80=100-30e^{-0.04t}\\\frac{20}{30}= e^{-0.04t}\\ln(\frac{2}{3})=-0.04t*ln(e)\\ t=10.14\ years

It will take 10.14 years until 80% of all eligible voters in your county are registered to vote

tia_tia [17]3 years ago
3 0

Answer: (40x)+500

Step-by-step explanation:

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Solve the proportion using equivalent ratios. Explain the steps you used to solve the proportion, and include the answer in your
rodikova [14]

Answer: Your answer is X=6

Step-by-step explanation:

10/3 = 20/x

Determine the defined range

10/3 20/x, x=0

Cross-multiply

10x = 60

Divide both sides by 10

x=6,x=0

Check if the solution is in the defined range

SOLUTION x=6

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4 0
3 years ago
Hilary made an origami dog. What is the area of the
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A = b × h

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3 years ago
The standard New York state license plate has three letters followed by four digits. How many different
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Answer:

175,760,000 possible license plates

Step-by-step explanation:

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= 26 ^3

and 4 spots where there are 10 choices each (the digits 0 through 9,  

= 10 ^4

This gives:

26^3*10^4=175,760,000

Hope this Helps...!!

8 0
3 years ago
The time until failure of an electronic device has an exponential distribution with mean 15 months. If a random sample of five s
Ainat [17]

Answer:

The probability that the first failure occurs among the five devices is given by

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probability is given as the; number of required outcome/ total number of possible outcome.

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3 years ago
A submarine sandwich shop makes sandwiches with one kind of bread, one protein, one choice of cheese, and two vegetables. How ma
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Answer:

480 different sandwiches

Step-by-step explanation:

To find how many sandwiches can be made, we need to find the number of possibilities for each choice: bread, protein, cheese, vegetables.

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Protein: 4 types -> combination of 4 choose 1 -> 4

Cheese: 4 types -> combination of 4 choose 1 -> 4

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So the number of different sandwiches is:

3 * 4 * 4 * 10 = 480

5 0
3 years ago
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