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tatuchka [14]
3 years ago
11

Jane needs to memorize words on a vocabulary list for Korean class. She has 18 words to memorize, and she is two-thirds done. Ho

w many words has Jane memorized so far?
Mathematics
1 answer:
alexgriva [62]3 years ago
3 0
2/3 of 18...." of " means multiply
2/3 * 18 = 36/3 = 12....she has memorized 12 words so far
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Solving equations and distributive property
Serhud [2]

Answer:

The answer is 10

Step-by-step explanation: You multiply the 2 times twenty to get 40 then multiply the 2 times 2x to get 4x then subtract fourty from both sides and you will get fourty and then divide so 40 divided by 4x equals 10.

5 0
3 years ago
Read 2 more answers
Fatima paid a $50. Initiation fee to join a gym. She also pays a fee of $25 per month. Write an expression that shows how much F
Morgarella [4.7K]
When it says per month, it means to multiply. In this case, the expression would be;

25x+50 

So however many months Fatima has spent at the gym, you would multiply that times 25 and add the initiation fee. Hope this helps. 

3 0
3 years ago
D) - 15/3 = x + 1<br> how do i solve this
kobusy [5.1K]

Answer:

x = - 6

Step-by-step explanation:

- 15/3 = x + 1

- x = 1 + 15/3

- x = 3/3 + 15/3

- x = 18/3

x = - 18/3

x = - 6

6 0
3 years ago
The sales decay for a product is given by S = 70000e^ -0.8x where S is the monthly sales and x is the number of months that have
Gre4nikov [31]

Answer:

After 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09

Step-by-step explanation:

Let's find the solutions for the two questions.

First question: How many months after the end of the campaign will sales drop below 1000.

Because the problem asks for how many months, and since 'x' represents month variable, then the problem is asking for 'x'.

Using the same equation for sales we can observe the following:

S=70000*e^{-0.8X}, but we have S which is 1000, so:

1000=70000*e^{-0.8X} which is equal to:

1000/70000=e^{-0.8X} which is equal to:

1/70=e^{-0.8X} by applying ln(x) properties:

ln(1/70)=ln(e^{-0.8X}) which is equal to:

ln(1/70)=-0.8X which is equal to:

ln(1/70)/(-0.8)=X so:

X=5.31 months

Second question: what will be the sales 5 months after the end of the campaign.

Because the problem asks for what will be the sales, and since 'S' represents the sales, then the problem is asking for 'S'.

Using the same equation for sales we can observe the following:

S=70000*e^{-0.8X}, but we have x which is 5 months, so:

S=70000*e^{-0.8*5} which is equal to

S=1282.09

In conclusion, after 5.31 months sales will drop below 1000 and 5 months after the end of the campaign sales will be 1282.09.

8 0
3 years ago
Calculate the correlation coefficient for the given data below:
Rasek [7]

The correlation coefficient of the data provided is -0.52.

<h3>What is the correlation coefficient?</h3>

Correlation is a measure that is used in statistics to determine the linear relationship that exists between two variables. Correlation can be positive, negative or zero.

Positive correlation is when two variables move in the same direction. Negative correlation is when two variables move in opposite directions. Zero correlation is when there is no relationship between the variables.

Correlation can be determined using a financial calculator. When the financial calculator is used, the correlation coefficient is -0.52

To learn more about negative correlation, please check: brainly.com/question/27246345

#SPJ1

4 0
1 year ago
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