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
Yuri [45]
3 years ago
13

C

Mathematics
1 answer:
egoroff_w [7]3 years ago
8 0

Answer:

Step-by-step explanation:

Answer:

$125  

Explanation:

Cost of meal                           =  $100

+ 5 % sales tax = 0.05 × 100 = +      5

+ 20 % tip         = 0.20 × 100 =  <u>     20</u>

Total cost                               =   $125

The total cost of the meal was $125.

You might be interested in
What is the row echelon form of this matrix?
USPshnik [31]

The row echelon form of the matrix is presented as follows;

\begin{bmatrix}1 &-2  &-5  \\ 0& 1 &  -7\\ 0&0  &1  \\\end{bmatrix}

<h3>What is the row echelon form of a matrix?</h3>

The row echelon form of a matrix has the rows consisting entirely of zeros at the bottom, and the first entry of a row that is not entirely zero is a one.

The given matrix is presented as follows;

\begin{bmatrix}-3 &6  &15  \\ 2& -6 &  4\\ 1&0  &-1  \\\end{bmatrix}

The conditions of a matrix in the row echelon form are as follows;

  1. There are row having nonzero entries above the zero rows.
  2. The first nonzero entry in a nonzero row is a one.
  3. The location of the leading one in a nonzero row is to the left of the leading one in the next lower rows.

Dividing Row 1 by -3 gives:

\begin{bmatrix}1 &-2  &-5  \\ 2& -6 &  4\\ 1&0  &-1  \\\end{bmatrix}

Multiplying Row 1 by 2 and subtracting the result from Row 2 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 1&0  &-1  \\\end{bmatrix}

Subtracting Row 1 from Row 3 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 0&2  &4  \\\end{bmatrix}

Adding Row 2 to Row 3 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& -2 &  14\\ 0&0  &18  \\\end{bmatrix}

Dividing Row 2 by -2, and Row 3 by 18 gives;

\begin{bmatrix}1 &-2  &-5  \\ 0& 1 &  -7\\ 0&0  &1  \\\end{bmatrix}

The above matrix is in the row echelon form

Learn more about the row echelon form here:

brainly.com/question/14721322

#SPJ1

8 0
1 year ago
at the cafeteria, muffins are sold in the following flavors: blueberry, orange, carrot, corn, bran, and choc chip. there is a re
Colt1911 [192]
There are 6 flavors, and each one can be regular or low fat.
So there are 12 different muffins possible.
4 0
3 years ago
What is 3x + 10(1-7X)
Alinara [238K]

Answer:

-67x + 10

Step-by-step explanation:

3x + 10(1 - 7x)

(use distributive property)

3x + 10 - 70x

(simplify)

3x - 70x + 10

-67x + 10

5 0
3 years ago
Read 2 more answers
Please help me :(.....
monitta

Answer:

the answer is C.........

7 0
3 years ago
Ten beans are lying on a table. Each bean has one different number, 1-10. If you choose a bean with your eyes closed, what is th
Lorico [155]
Prime numbers: 2, 3, 5, 7.
There are 4 prime numbers and 10 possibilities, so the probability is 4/10 = 2/5 or 40%
6 0
3 years ago
Other questions:
  • Can someone help me please):
    15·1 answer
  • 2x+5=17<br><br> please can I have some help x
    10·2 answers
  • Solve: 2/3 x - 4 = -2 A) -3 B) -4 C) -9 D) 3
    7·2 answers
  • Write in words 1,080,000.
    14·2 answers
  • Carl runs around a track in 1.17 minutes. How long would it take him to run 1.5 laps at this rate? [Round to two places
    5·2 answers
  • As an estimation We are told 5 miles is 8 km convert 27. 5 miles to km​
    12·1 answer
  • A young sumo wrestler decided to go on a special high-protein diet to gain weight rapidly. When he started his diet, he weighed
    15·1 answer
  • Simplify square root of 8
    5·1 answer
  • Find the area of the circle. round your answer to the nearest hundredth
    5·1 answer
  • Suppose each cube in this figure is a -inch cube. Select all that are true.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!