To answer this question we can propose the following equation:
Where:
x is the number of weeks elapsed.
d is the debt depending on the weeks.
Robert promised to pay at least $ 67 each week.
Therefore, after 5 weeks the debt of rober should be:
Then scenario A) is possible because .
After 6 weeks:
Then scenario B) is possible because .
After 7 weeks
Then scenario C) is possible because .
After 8 weeks
So scenario D) is NOT possible because
Finally the correct answer is option D.
Given problem;
Write and algebraic expression for the number of awards Tomi's band has won;
Let the number of award Tomi's band has won = T
Let the number of award All's band has won = A
We know;
Tomi's band has won twice as many awards as All's band.
T = 2 x A
T = 2A
The algebraic expression is T = 2A
Using the z-distribution, the estimate for how much the drug will lower a typical patient's systolic blood pressure is:
<h3>What is a z-distribution confidence interval?</h3>
The confidence interval is:
In which:
- is the sample mean.
- is the standard deviation for the population.
In this problem, we have a 80% confidence level, hence, z is the value of Z that has a p-value of , so the critical value is z = 1.28.
The other parameters are given by:
Then the bounds of the interval are:
Hence the interval is:
More can be learned about the z-distribution at brainly.com/question/25890103
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Answer: 25%
Step-by-step explanation: To find the percent increase, we divide the amount of change by the original number.
The amount of change is the difference between the two numbers which in this case is 375 - 300 and the original number is 300.
.
375 - 300 is 75 so we have 75/300 which is 0.25 as a decimal.
Now, remember we want to find the <u><em>percent</em></u><em> </em>increase so we need to write 0.25 as a percent.
We do this by moving the decimal point 2 places
to the right to get 25%.
So when a number changes from 300 to 275, it's increasing by 25%.
Answer:
2m+3n=20
Step-by-step explanation: