1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
AveGali [126]
3 years ago
11

Jackie made $28 babysitting last week. her brother joe made only 86% as much as she did. how much did joe make?

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0
Her brother joe made $52.08. First you need to make the percent into a decimal, like this 86% => .86. Then multiply .86 to $28. After that add what you got to $28.
You might be interested in
An air transport association surveys business travelers to develop quality ratings for transatlantic gateway airports. The maxim
Flura [38]

Answer:

The 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the population mean, when the population standard deviation is not provided is:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

The sample selected is of size, <em>n</em> = 50.

The critical value of <em>t</em> for 95% confidence level and (<em>n</em> - 1) = 49 degrees of freedom is:

t_{\alpha/2, (n-1)}=t_{0.05/2, 49}\approx t_{0.025, 60}=2.000

*Use a <em>t</em>-table.

Compute the sample mean and sample standard deviation as follows:

\bar x=\frac{1}{n}\sum X=\frac{1}{50}\times [1+5+6+...+10]=6.76\\\\s=\sqrt{\frac{1}{n-1}\sum (x-\bar x)^{2}}=\sqrt{\frac{1}{49}\times 31.12}=2.552

Compute the 95% confidence interval estimate of the population mean rating for Miami as follows:

CI=\bar x \pm t_{\alpha/2, (n-1)}\cdot \frac{s}{\sqrt{n}}

     =6.76\pm 2.000\times \frac{2.552}{\sqrt{50}}\\\\=6.76\pm 0.722\\\\=(6.038, 7.482)\\\\\approx (6.0, 7.5)

Thus, the 95% confidence interval estimate of the population mean rating for Miami is (6.0, 7.5).

7 0
3 years ago
First to answer gets brainliest
atroni [7]

Answer:

Last one

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Simplify the rational expression by rationalizing the denominator √15/√6x
noname [10]

Answer:

√10/2x

Step-by-step explanation:

Multiply by √6 on the top and bottom to rationalize the denominator.

(√15×√6)/(√6x×√6) = √90/6x = (√9×√10)/6x = 3√10/6x = √10/2x

4 0
3 years ago
How many groups of 1/2 are in 3 1/2
Nuetrik [128]

Answer:

7 Groups of 1/2 in 3 1/2

7 0
3 years ago
The function y=f(x) is graphed below. Plot a line segment connecting the the points on f where x=5 and x=7. Use the line segment
aksik [14]

Answer: average y = -8 average y =2

ARC : -4

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • Let f(x)=6x^2-ax^3 what is the value of a if f has a point of inflection at X=6
    8·1 answer
  • Choose the equation that represents the line that passes through the point (6, −3) and has a slope of one half.
    13·2 answers
  • Use the formula S = 40,000 (1.06)t to calculate your salary after 4 years. Round your answer to the nearest dollar.
    11·1 answer
  • What Type of Measure do we use for length
    13·1 answer
  • Y=2x+5<br> X=5x+9 How Do you solve this solution
    14·2 answers
  • For which of the following intervals is the graph increasing
    14·1 answer
  • £1 = 1.18 euros How many pounds will lisa have to exchange to get 300.90 euros. (please answer!)
    8·2 answers
  • 1521 milliliters equals to how many liters??
    14·1 answer
  • SOMBoDY HELP I pICKED A RANDOM ANSWER aND I DOnT kNoW IF iT IS rIGhT
    8·2 answers
  • Second part to my question ToT Plz help Double points :D
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!