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
Vlada [557]
2 years ago
6

Carla and Rob left a 20% tip after having lunch at a restaurant. The amount of the tip was $6. Carla's lunch cost $15. Write an

equation you can use to find x, the cost of Rob's lunch.
Mathematics
1 answer:
Afina-wow [57]2 years ago
4 0

Robs lunch cost is unknown = x

and we know carla's cost 15  = 15

x + 15 = total lunch cost

now me know 20% is 6

so 20% of total lunch cost is 6

or

(x+15)(.02)  which is 20% of lunch and this is 6

or

(x+15)(.02) = 6  this is the equation to find x

this is the answer, but for kicks lets solve it to to find the cost

.2x + 3 = 6

     - 3    -3  

.2x  = 3

/.2     /.2

x = 15

Robs lunch cost $15 too


You might be interested in
Please help!!! I’ll mark as brainliest :)
lyudmila [28]

Answer:

the third one

Step-by-step explanation:

5 0
2 years ago
Add the following decimals.
Natalija [7]

a. 1.104

b. 1.2

c. 0.8382

d. 1.225

e. 0.8932

f. 1.4381

g. 79.92

h. 45.573

3 0
3 years ago
Read 2 more answers
The vertices of a triangle are A(2,5), B(1, 2), and C(3, 1). Find the coordinates of the image after a dilation with respect
Dmitry_Shevchenko [17]

The coordinates of the image after a dilation with respect to the origin is A'' (2,10), B" (0,4), C" (4,2) .

<h3>How does dilation work?</h3>

Dilation of a figure will leave its sides get scaled (multiplied) by same number. That number is called the scale factor of that dilation.

Its also called scaling of a figure, but due to the involvement of coordinates, it involves a center of a dilation, which is like a pinned point that stays at the same place after dilation.

Its like we enlarge or shorten the size of the figure (or keep it same, when scale factor = 1).

The vertices of a triangle are A(2,5), B(1, 2), and C(3, 1).

A' = 2(2.5) = (4,10)

B' = 2(1,2) = (2,4)

C' = 2(3,1) = (6,2)

Translation of 2 units left means change in x

A'' = (4-2,10) = (2,10)

B" = (2-2,4) = (0,4)

C" = (6-2,2) = (4,2)

Translation of 1 units up means change in y

Learn more about vertices ;

brainly.com/question/27886655

#SPJ1

7 0
2 years ago
HELP PLS ASAP<br><br><br><br> -5 = 5/12a pls evaluate
Setler79 [48]

Answer:

a = -12

Remember that when a variable is times with a number, you <u>divide</u> the number on both sides.

When a variable is divided by a number, you <u>multiply</u> the number on both sides.

Hope this helps you. Thank you !!

6 0
2 years ago
Formula for pi. What does pi equal
RSB [31]

Answer:

3.149

Step-by-step explanation:

that is just the number pi never ends but in most math classes 3.149 is all yoi need

6 0
2 years ago
Read 2 more answers
Other questions:
  • Solve for X: Show me the steps:<br><br> -3x = 2x + 19
    8·1 answer
  • What is the volume of the right prism with height h=14 cm, if the base of the prism is a triangle ∆ABC with side AB = 9 cm and a
    7·1 answer
  • What is the value of negative one over four subtracted by one over two divided by negativitie four over seven
    10·1 answer
  • For 9 and 9A, find the slope of the line​
    8·1 answer
  • A Triangular prism with a triangular base of 8 in. and height of 6in. and a prism height of 4in. What is the surface area of the
    7·1 answer
  • On a farm 14 of the goats are male, and 11 of the goats are female. Wha percent of these goats are male?
    6·2 answers
  • What is the best equation for the line of best fit for the following graph?
    11·2 answers
  • Don’t understand, need help
    7·1 answer
  • I NEED HELP WITH THIS PICTURE IS PROVIDED
    15·1 answer
  • What is the value of sin(80°)cos⁡(20°)-cos(80°)sin(20°)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!