answer.
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
garik1379 [7]
2 years ago
8

Matt paid $55 at a restaurant. That amount included a 10% tip. What was the check amount before the tip?

Mathematics
2 answers:
Luda [366]2 years ago
7 0

Total amount paid by Matt at restaurant was 55 dollars. It included a service tip of 10% on check amount.

Total bill is given by sum of check amount and tip amount (if any).

Total Bill = Check amount + Tip amount.

55 dollars = Check amount + 10% of check amount.

55 dollars = 110% of check amount.

55 dollars = 1.10 x check amount.

Check amount = \frac{55 \;dollars}{1.10} = \frac{550}{11} = 50 \;dollars.

Hence, option D is correct, i.e. 50 dollars.

zimovet [89]2 years ago
5 0
Hope this helps but I think the answer is $50
You might be interested in
Brian buys a computer for £4300. It depreciates at a rate of 3% per year. How much will it be worth in 6 years? Give your answer
aalyn [17]

Answer:

3526

Step-by-step explanation:

4300×3%=129

129×6=774

4300_774= 3526

4 0
2 years ago
Read 2 more answers
Lynn is making custom bricks. She combines 39 pounds of water and 48 pounds of brick dust in a mixing bucket. She spills 13 poun
ehidna [41]

Lynn mixes 39 pounds of water with 48 pounds of brick dust, so the mixture has a total weight of 39 + 48 = 87 pounds.

13 pounds are spilled during mixing, so she's left with 87 - 13 = 74 pounds to turn into bricks.

7 pounds are needed for 1 brick, so she can make 10 bricks because 7 • 10 = 70 and 7 • 11 = 77, and 70 < 74 < 77.

If she uses the mixture to make 10 bricks, she uses up 70 pounds of it, which leaves 4 pounds to be washed out.

5 0
2 years ago
Find, correct to four decimal places, the length of the curve of intersection of the cylinder 16x2 + y2 = 16 and the plane x + y
Yuri [45]

Let the curve C be the intersection of the cylinder  



16x^2+y^2=16



and the plane



x+y+z=1



The projection of C on to the x-y plane is the ellipse



16x^2+y^2=16



To see clearly that this is an ellipse, le us divide through by 16, to get



\frac{x^2}{1}+ \frac{y^2}{16}=1



or  



\frac{x^2}{1^2}+ \frac{y^2}{4^2}=1,



We can write the following parametric equations,



x=cos(t), y=4sin(t)



for  



0\le t \le 2\pi



Since C lies on the plane,



x+y+z=1



it must satisfy its equation.



Let us make z the subject first,  



z=1-x-y



This implies that,



z=1-sin(t)-4cos(t)



We can now write the vector equation of C, to obtain,



r(t)=(cos(t),4sin(t),1-cos(t)-4sin(t))



The length of the curve of the intersection of the cylinder and the plane is now given by,



\int\limits^{2\pi}_0 {|r'(t)|} \, dt



But  



r'(t)=(-sin(t),4cos(t),sin(t)-4cos(t))



|r'(t)|=\sqrt{(-sin(t))^2+(4cos(t))^2+(sin(t)-4cos(t))}



\int\limits^{2\pi}_0 {\sqrt{2sin^2(t)+32cos(t)-8sin(t)cos(t)} }\, dt=24.08778184



Therefore the length of the curve of the intersection  intersection of the cylinder and the plane is 24.0878 units correct to four decimal places.

6 0
2 years ago
The histograms below show the heights (in meters) of the tallest buildings in China and the United States.
USPshnik [31]

Answer:

A and B

Step-by-step explanation:

I tried it and it was correct. The United states has the tallest... and China has more buildings... are the correct ones.

6 0
2 years ago
Ms stewart teaches three science classes her students are freshmen and sophomores. her student data are shown in the relative fr
viktelen [127]

Answer:

B) 25% of her students are in chemistry.

Step-by-step explanation:

There were 0.1, or 10%, of freshmen in chemistry.  There were 0.25, or 25%, of sophomores in chemistry.  This is a total of 0.1+0.25 = 0.35, or 35%.

This is not 25%.

4 0
2 years ago
Read 2 more answers
Other questions:
  • What is 1/6+1/2 in its simplest form?
    10·2 answers
  • How would the expression x^3+64 be rewritten using sum off cubes
    14·2 answers
  • Ulysses is spending his vacation in South Carolina. He rents a car and is offered two different payment options. He can either p
    14·2 answers
  • Ratio for 669 and 221
    6·2 answers
  • A student club holds a meeting. The predicate M(x) denotes whether person x came to the meeting on time. The predicate O(x) refe
    7·1 answer
  • Susan and ronald dugan agreed upon the price of 256,000 for their new home. They plan to make 30 percent down payment and financ
    5·1 answer
  • Luca decides to play Wheel of Letters. To play the game, contestants spin a wheel with 26 equal sections, lettered A through Z.
    14·1 answer
  • Which is equivalent toStartRoot 10 EndRoot Superscript three-fourths x ?
    15·1 answer
  • The table shows the height of water in a pool as it is being filled. A table showing Height of Water in a Pool with two columns
    7·1 answer
  • A scuba diver used the expression below to describe his position in relation to sea level.2 + (negative 20) + 8Which statement c
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!