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
irakobra [83]
2 years ago
14

Kurt had a plate of pancakes at a diner. The bill, with tax, was $6.75. He gave the waiter a tip equal to 20% of the bill. What

is the total amount that Kurt spent at the diner? A. $1.35 B. $6.89 C. $6.95 D. $8.10
Mathematics
2 answers:
worty [1.4K]2 years ago
6 0
.20 x 6.75 = 1.35
1.35 + 6.75 = 8.10
bogdanovich [222]2 years ago
4 0

Answer:

$8.10

Step-by-step explanation:

6.75 ÷ 100 = 0.0675 x 20 = 1.35

1.35+6.75=$8.10

You might be interested in
A large tank is filled to capacity with 300 gallons of pure water. brine containing 5 pounds of salt per gallon is pumped into t
Licemer1 [7]
If A(t) is the amount of salt in the tank at time t, then the rate at which this amount changes over time is given by the ODE

A'(t)=\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{5\text{ lb}}{1\text{ gal}}-\dfrac{3\text{ gal}}{1\text{ min}}\cdot\dfrac{A(t)\text{ lb}}{300+(3-3)t\text{ gal}}

A'(t)+\dfrac1{100}A(t)=15

We're told that the tank initially starts with no salt in the water, so A(0)=0.

Multiply both sides by an integrating factor, e^{t/100}:

e^{t/100}A'(t)+\dfrac1{100}e^{t/100}A(t)=15e^{t/100}
\left(e^{t/100}A(t)\right)'=15e^{t/100}
e^{t/100}A(t)=1500e^{t/100}+C
A(t)=1500+Ce^{-t/100}

Since A(0)=0, we have

0=1500+C\implies C=-1500

so that the amount of salt in the tank over time is given by

A(t)=1500(1-e^{-t/100})

After 10 minutes, the amount of salt in the tank is

A(10)=1500(1-e^{-1/10})\approx142.74\text{ lb}
8 0
3 years ago
Ann bought 6 CDs that were each the same price. Including sales tax, she paid a total of 93.60. Of that total, 4.20was tax. What
Mariulka [41]
If you do 93.60-4.20=89.40. Then you do 89.40 divided by 6= 14.90 so each cd before tax would be $14.90.
7 0
3 years ago
If a line has a slope of 2 and contains the point (-2, 1), what is its equation in
Lapatulllka [165]

Answer:

D

Step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b ) a point on the line

here m = 2 and (a, b ) = (- 2, 1 ) , then

y - 1 = 2(x - (- 2)) , that is

y - 1 = 2(x + 2)

5 0
2 years ago
Use the following information to answer Part A Part B
vekshin1

Answer:

can some one please answer it please

Step-by-step explanation:

8 0
2 years ago
A business owner must decide whether to improve the benefits she offers her
Troyanec [42]

Answer:

Step-by-step explanation: Cost-Benefit Analysis

7 0
3 years ago
Other questions:
  • Triangle △ABC has an altitude CD . Which of the three points, A, B, D are between the other two if angles A and B are both acute
    9·1 answer
  • What is the mode of the data set?<br> 23 95 100 23 100 100
    6·2 answers
  • An Internet and cable-television supplier surveyed a random sample of their customers. The results are shown in the table.
    10·2 answers
  • A taxi company charges $2.25 for the first mile and then $0.20 per mile for
    9·1 answer
  • Please solve 17-20! Will give brainliest!​
    6·1 answer
  • Evaluate pq for p=-5 and q=9
    13·1 answer
  • Right trapezoid WXYZ is shown. Right trapezoid W X Y Z is shown. Sides X Y and W Z are parallel. Angle W is 73 degrees and angle
    10·1 answer
  • What's a birds favorite math topic
    14·2 answers
  • Alyssa bought a dress for $52 and 3 pairs of jeans. She paid a total of $125. Write an equation to represent this word problem
    7·2 answers
  • Zippy company manufactured 10,000 units in December with a total product cost of $25,472 They had zero finished goods inventory
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!