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
marshall27 [118]
3 years ago
5

A group of three friends went to lunch. The bill, before sales tax and tip, was $45.50. A sales tax of 9%was added. The group th

en 20% on the amount after the sales tax was added. What was the amount, in dollars, of the sales tax? What was the total amount the group paid, including tax and tip?
Mathematics
1 answer:
Elenna [48]3 years ago
4 0
The sales tax would be .09 cents, since 9÷100 is .09. $45.50+.09 is 45.59. 20% is the same as .2. $45.59+.2 is $45.79. Your answer is $45.79.
You might be interested in
When 258 college students are randomly selected and surveyed, it is found that 106 own a car. Find a 99% confidence interval for
juin [17]

Answer: 0.332 < p < 0.490

Step-by-step explanation:

We know that the confidence interval for population proportion is given by :-

\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}

, where n= sample size

\hat{p} = sample proportion

z* = critical z-value.

As per given , we have

n= 258

Sample proportion of college students who own a car = \hat{p}=\dfrac{106}{258}\approx0.411

Critical z-value for 99% confidence interval is 2.576. (By z-table)

Therefore , the  99% confidence interval for the true proportion(p) of all college students who own a car will be :0.411\pm (2.576)\sqrt{\dfrac{0.411(1-0.411)}{258}}\\\\=0.411\pm (2.576)\sqrt{0.00093829}\\\\= 0.411\pm (2.576)(0.0306315197142)\\\\=0.411\pm 0.0789=(0.411-0.0789,\ 0.411+0.0789)\\\\=(0.3321,\ 0.4899)\approx(0.332,\ 0.490)

Hence, a 99% confidence interval for the true proportion of all college students who own a car : 0.332 < p < 0.490

3 0
3 years ago
Simplify (square root)2/^3(square root)2
Whitepunk [10]

Answer: Personally I would do option "B" 2 1/3 because it sounds right.

4 0
3 years ago
HElP what There is a $20 shirt and it is 1/3% off
Whitepunk [10]

Answer:

13.4 left

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Find the value of x so that the shaded region is a gnomon to the white rectangle.
RUDIKE [14]

Based on the shaded region, the value of x which makes this region a gnomon is x = 1.

<h3>What is value of x?</h3>

Based on the dimensions of the side that isn't shaded, and the dimensions of the side that is shaded, the value of x can be found as:

3/ 6 = (1 + 3) / (x + 6 + x)

1/2 =  4 / (6 + 2x)

6 + 2x = 4 / (1/2)

2x = 8 - 6

x = 2/2

x = 1

Find out more on shaded regions at brainly.com/question/9767762.

#SPJ4

4 0
1 year ago
PLS HELP ME WITH THIS!! Find the ratio of triangles to circles in the diagram below.<br> 40 POINTS!!
dedylja [7]

Answer:

The ratio is 12:20.

Step-by-step explanation:

3:5, if simplified.

3 0
2 years ago
Other questions:
  • I need to know all 13 &amp; 14
    7·1 answer
  • What is 2 divided by 440
    11·1 answer
  • ALexis bought x boxes of cereal for$3each,including tax,and paid with a$20bill.which expression represents the total amount of c
    11·2 answers
  • Which statement comparing ​ |−12| ​ and ​ |8| ​ is true?
    13·2 answers
  • Help I will mark brainliestttt
    13·1 answer
  • Solve the following answer √50 * 3√2 =
    8·1 answer
  • (7.2 x ten to the third) - (2.2 x ten to the fifth)
    12·2 answers
  • Which number line models the solution set of -2x + 7 &gt; 17?
    7·2 answers
  • Plsss help me with this question!!
    11·1 answer
  • Brett runs at constant speed, 3 miles every 45 minutes. At this rate, how many mile(s) does he run in 12 minutes?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!