Mark went to the bookstore. He bought 3
books for $6.00 each and two magazines
for $3.50 each. He received a 25% discount
on his purchase. If he handed the cashier
$20, how much change did Mark get back?

Answers

Answer 1

Answer: $1.25

Step-by-step explanation: (6*3) = 18 + (2*3.50)= 7

18+7=25

25*.25= 6.25

25-6.25= 18.75

20-18.75 = 1.25


Related Questions

help me plsss i need help

Answers

Answer:

1. = 2/3

2. = 5/7

3. = 2/3

Step-by-step explanation:

divide by 4 for 1

divide by 2 for 2

divide by 2 for 3

If there are 45 boys and 60 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

Answer:

45:60

45 to 60

45/60

Step-by-step explanation:

it's the 3 different types of ways to write a ratio

2) As a wildlife biologist you are currently researching feral pigs in Texas and need to collect data to yield the average weight of a mature female feral pig in Texas. Which type of study is most suitable for data collection in this situation? A) experimental B) Census sampling Eliminate D) simulation​

Answers

Answer:

Step-by-step explanation:

C sampling

name the song
What is the median of the data set shown?34, 86, 12, 56, 21, 98, 72, 34, 21, 34, 45, 23, 97, 44

Answers

Answer:

39

Step-by-step explanation:

median is the middle number

12, 21, 21, 23, 34, 34, 34, 44, 45, 56, 72, 86, 97, 98

34-44=10

10/2=5

34+5=39

39

7. Find the volume of the hemisphere if the dimeter is 18mm. Round to the nearest
tenth.

Answers

Answer:

20

Step-by-step explanation:

This answer is 20!!!!!

anyone please help .

...

Answers

Answer:

HI is 8 as the equal angles resemble equilateral triangle

rhe angle is 110 as the two equal sides represent isosceles triangle

Step-by-step explanation:

hope it helped!!!

Can somebody please help me!!

Answers

Step-by-step explanation:

it is in the picture that I have provided

NO LINKS PLEASE

Which algebraic rule represents the pattern in the table?

Answers

multiplying each number by 8

Answer: n=m divided by 8

Step-by-step explanation:

Draw regular polygons with the given number of sides. Then find the measure of one interior and exterior angle in each polygon. (For the drawing of regular polygons use bond paper or pad paper)
Measure of Interior /s Measure of Exterior /s
1. 4 sides __________________ _________________
2. 5 sides __________________ _________________
3. 8 sides __________________ _________________
4. 10 sides __________________ _________________
5. 12 sides __________________ _________________
pa help po ako

Answers

Answer:

1) 90 90

2) 108 72

3) 135 45

4) 144 36

5) 150 30

.. Is the product of (-2.1)(3.7)(8)(4.5) positive or negative?*

Answers

Answer:

negative

Step-by-step explanation:

(-2.1)(3.7)(8)(4.5)= -279.72

A computer password contains six characters but does not permit repetition of any characters (either letters or numbers). If uppercase and lowercase letters are used, how many possible passwords are there?

Answers

Answer:

[tex]\frac{62!}{56!}[/tex]

Step-by-step explanation:

We can either look at all 62 characters (2 * 26 in the alphabet and 10 digits), choose 6 of them, and add the fact that we care about their order - so multiply by 6! and we get [tex]\binom{62}{6}\cdot 6! = \frac{62!}{6!\cdot 56!} \cdot 6! = \frac{62!}{56!}[/tex]

Or, we can look atr all the permutations of all the characters and take into account that we DON'T care about the order of the 56 after the first six. Getting [tex]\frac{62!}{56!}[/tex] immediately.

During a sale of computers, one-fourth of
the inventory was sold the first day. The next
day two-thirds of the remaining inventory was
sold. What percent of the total inventory was
sold during the second day?

Answers

Answer:

On the second day, 50% of the total computer inventory was sold.

Step-by-step explanation:

Since during a sale of computers, one-fourth of the inventory was sold the first day, while the next day two-thirds of the remaining inventory was sold, to determine what percent of the total inventory was sold during the second day, we must perform the following calculations:

1/4 = 0.25 = 25%

Remaining = 100 - 25 = 75%

75/3 = 25 x 2 = 50

Thus, on the second day, 50% of the total computer inventory was sold.

2
The parabola y = x2 is scaled vertically by a factor of
3
What is the equation of the new parabola?

Answers

Answer:

Drop Out

Step-by-step explanation:

School Sucks

3=x2

The area of a square is 1800 in2, how long is each diagonal?

Answers

9514 1404 393

Answer:

  60 in

Step-by-step explanation:

The area of a square can be computed as ...

  A = (1/2)d^2 . . . . where d is the length of the diagonal

For an area of 1800 in^2, the diagonal length can be found as ...

  1800 in^2 = 1/2d^2

  3600 in^2 = d^2

  d = √3600 in = 60 in

The length of each diagonal is 60 inches.

According to genetic theory, the blossom color in the second generation of a certain cross of sweet peas should be red or white in a 3:1 ratio. That is, each plant has probability 3/4 of having red blossoms, and the blossom colors of separate plants are independent. Using the Binomial distribution, what is the exact probability that more than 7 out of 10 these plants have red blossoms

Answers

Answer:

The answer is "0.250".

Step-by-step explanation:

Given:

[tex]P(X=7) \\\\ n=10\\\\ p=0.75\\\\x \sim Binomial (n = 10, p = 0.75)\\[/tex]

[tex]P(X=7) =\binom{n}{x} P^{x} (1-p)^{(n-x)} \\\\[/tex]

                [tex]= \binom{10}{7}(0.75)^7(1-0.75)^{10-7} \\\\=120 \times (0.75)^7 \times (0.25)^3\\\\=0.250[/tex]

7. Which of the following number has a rational root?
A V322
V324
B. 7323
D. 7325​

Answers

Answer:

Step-by-step explanation:

Prime factorize the number. Only 324 can be factorized.

[tex]\sqrt{324}=\sqrt{2*2*3*3*3*3}=2*3*3=18[/tex] is rational number

no links plz help
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

the answer is essentially d

Pls help I need a good grade

Answers

Answer:

If it is number 5. the answer is 13

Step-by-step explanation:

take the largest number and subtract the smallest number.

Answer:

13

Step-by-step explanation:

highest number is 60

lowest number is 47

60-47=13

find the value of" A" such that triangle DEF with vertices D (a,1) , E(10,7) and F(7 ,11) is a right angle at E?​

Answers

a=2

Answer:

(m1) slope of DE=(7-1)/(10-a)=6/(10-a)

(m2) slope of EF=(11-7)/(7-10)=4/-3=-4/3

since line are perpendicular

m1m2=-1

6/(10-a) ×-4/3=-1

6/(10-a)=3/4

6×4=3(10-a)

24=30-3a

3a=30-24

a=6/3=2

A basket has 6 bananas, 2 oranges and 4 apples. What is the probability of pulling out an apple?

Answers

I think it's 8 but I'm not completely sure. What I did is 6+2+4 which is 12 and 12-4=8 but I'm not sure. I think it's wrong sorry I just need points..

The number 4,250 is ten times smaller than what number?

Answers

Answer:

42,500

Step-by-step explanation:

The number which is ten times greater than 4250 is 42, 500.

What is algebra?

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

The number 4,250 is ten times smaller than what number.

let the number be x.

So, x/10 = 4250

Now, make x as subject formula

x = 4250(10)

x= 42500

Learn more about Algebra here:

https://brainly.com/question/24875240

#SPJ2


1. The population of an endangered species of bird is decreasing 15 percent each year. If there were originally 1,400 birds remaining,
how many are left after six years?

Answers

Answer:

528 birds

Step-by-step explanation:

100%-15%= 85% = .85

1400 (.85)^6

= 528

Ted jogged a total of 11.2 miles in 4 days. He jogged the same distance each day
Part A
How far did he jog each day? Enter your answer in the box,
2.8
milos
00:00
Part B
How many total miles would Ted jog if he continued to jog the same number of miles each day for 6 days? Enter your answer in the box

Answers

Answer:

Part A: 2.8 miles

Part B: 16.8 miles

Step-by-step explanation:

First, solve for how many miles Ted jogged in 1 day:

Variable x = number of miles

11.2/4 = x/1

Cross multiply

11.2 × 1 = 4 × x

11.2 = 4x

Divide both sides by 4

2.8 = x

He jogged 2.8 miles every day.

To find how many miles Ted would jog in 6 days, simply multiply his miles per day by the number of days he will jog:

2.8 miles × 6 days = 16.8 miles in 6 days

Two people share proceeds of a business venture in the ratio 2:3 If the proceeds came to GHS 2,350,000 how much does each get?

Answers

Answer:

GHS 940,000 and GHS 1,410,000

Step-by-step explanation:

Total Ratio, thus 2+3 = 5 = 2,350,000

2/5 × 2,350,000 = 940,000

3/5 × 2,350,000 = 1,410,000

In conclusion, the money was shared at GHS 940,000 and GHS 1,410,000 among the two.

The rate of​ healing, A′(t)​(in square centimeters per​ day), for a certain type of abrasive skin wound is given approximately by the table.

t 0 1 2 3
A′(t) 0.91 0.83 0.76 0.69

t 4 5 6 7
A′(t) 0.62 0.58 0.48 0.44 ​

Use left and right sums over five equal subintervals to approximate the area under the graph of A′(t) from t=0 to t=5.

The left​ sum, L5​, is __________.
The right​ sum, R5​, is ______________.

Answers

Answer:

Step-by-step explanation:

Given that:

t          0           1              2          3            4            5           6            7

A'(t)    0.91       0.83       0.76     0.69       0.62      0.58      0.48      0.44

a)  [tex]\Delta x = \dfrac{5-0}{5}[/tex]

[tex]\Delta x = 1[/tex]

[tex]L_ 5= \Delta x ( (A'(0)+A'(1)+A'(2)+A'(3)+A'(4)) \\ \\ = 1 (0.91 + 0.83+ 0.76 +0.69 + 0.62 ) \\\\ L_5 =1( 3.81) \\ \\ \mathbf{L_5 = 3.81}[/tex]

[tex]R_ 5= \Delta x ( (A'(1)+A'(2)+A'(3)+A'(4)+A'(5)) \\ \\ = 1 ( 0.83+ 0.76 +0.69 + 0.62 +0.58) \\\\ R_5 =1( 3.48) \\ \\ \mathbf{R_5 = 3.48}[/tex]

The true statement:

[tex]Since, R_5 = 3.48 \ and \ L_5 = 3.81; \\ \\ Then : R_5 \le \int \limits ^5_0 A'(t) dt \le L_5[/tex]

-3 < 5 true or false

Answers

Answer:

true

Step-by-step explanation:

Answer:

true?

Step-by-step explanation:

a painter is paid by the hour if he is paid 360 for 12 hours work how much will he be paid for 9 hours work​

Answers

Answer: $270

Step-by-step explanation:

1. calculate how much he's getting paid per hour

- 360 / 12 = $30

2. calculate  how much he's getting paid for 9 hours

- 30 * 9 = $270

The amount he would be paid for 9 hours of work is  270.

How much would the painter be paid for 9 hours of work?

The first step is to determin1 be how much the painter would be paid for 1 hour of work.

Pay for working for 1 hour = 360 / 12 = 30

The pay for 9 hours = 30 x 9 = 270

In AFGH, the measure of ZH=90°, the measure of ZF=44°, and GH = 14 feet. Find
the length of HF to the nearest tenth of a foot.

Answers

Answer:

In AFGH, the measure of ZH=90°, the measure of ZF=44°, and GH = 14 feet. Find the length of HF to the nearest tenth of a foot.​ - 22536102.

Step-by-step explanation:

HELP ME PLEASE I CAN'T FAIL THIS!!!

To find the distance AB across a river, a distance BC of 319 m is laid off on one side of the river. It is found that B = 104.6° and C = 14.4°. Find AB.

Answers

Answer:

90.70464953m

Step-by-step explanation:

Look at the image

Please help. I don’t understand the question.

Answers

9514 1404 393

Answer:

  -21, 13

Step-by-step explanation:

If Z is located to the right of Y, its point on the number line is -4+17 = 13.

If Z is located to the left of Y, its point on the number line is -4-17 = -21.

There are two possible locations for Z on a number line.

_____

In a 2-dimensional plane, there are an infinite number of locations of distance 17 from a given point. The set of all of them makes a circle on the plane, with radius 17.

In 3-dimensions, the set of points becomes a sphere with radius 17.

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