A bookstore had 81 copies of a magazine, Yesterday the bookstore sold 7/9 of these copies. How many copies were sold yesterday?​

Answers

Answer 1

Answer: 63 copies were sold yesterday.

Step-by-step explanation: To find how many copies were sold yesterday, simply multiply 81 by 7 which is 567. Then, divide 567 by 9 which is 63.

Answer 2
I believe 63 copies were sold (like the person above said)

How I would have done it is found out what 1/9 was, by dividing 81 by 9 which is 9, then multiply 9 and 7 to get the amount of books sold which is 63

Please correct me if I am wrong, have a good day!

Related Questions

Paige only needs to sell to 17 more customers to receive a bonus. She works part time, so she only talks to 50 customers per day. With a sales ratio of 1:9, on which day will Paige qualify for a bonus?

Answers

Answer:

Paige will qualify for a bonus on her 4th day of work.

Step-by-step explanation:

50 customers per day

needs to sell to 17

Ratio = 1:9

      1:9

×17         ×17

    17:153

Paige needs to see 153 customers.

153 ÷ 50 = 3.06 ≈ 4   (As the answer is not asking for the exact number of the day you round up to make a whole day without underestimating)

So, Paige will qualify for a bonus on her 4th day of work.

A friend tells you about a recent study dealing with the number of years of teaching experience among current college professors. He remembers the mean but can't recall whether the standard deviation was 6 months, 6 years or 16 years. Which was it?

Answers

Answer:

6 years

Step-by-step explanation:

Research studies show that the relationship between the tire pressure of a vehicle's tires and the life of the tires is
quadratic. The following table shows data for the tire pressure of a car's tires (in pounds per square inch) and its
average tire life (in thousands of miles)
Tire Pressure Tire Life
29
46.8
32
576
34
58.8
36
60.0
38
58.8
40
57.0
42
52.8
Use a graphing or online regression calculator to find the quadratic function of best fit for this set of data. Then predict
the tire life for this vehicle's tires given that the tire pressure is maintained at 30 psi (pounds per square inch)
47.800 miles
48.800 miles

Answers

Answer:

i dont know what is that explain that

you are in talks to settle a potential lawsuit. the defendant has offered to make annual payments of 23000 29000 56000 and 84000 to you each year over the next four years respectively. all payments will be made at the end of the year. if the appropriate interest rate is 4.5 percent what is the value of the settlement offer today

Answers

Answer:

The defendant has offered to make annual payments of $23,000, $29,000, $56,000, and $84,000 to you each year over the next four years,

2. The area A of a circle is increasing at a constant rate of 2.5cm s . If the area of the circle is given
by A = πr2, what is the rate of change of the radius when the radius is 15cm?

Answers

Answer:

235.65 cm^2s-1

Step-by-step explanation:

We have that;

Rate of change of area (dA/dt) = (dA/dr) (dr/dt) By chain rule

Note that dr/dt = rate of change of radius

But

A = πr^2

dA/dr = 2πr

dr/dt = 2.5cm s-1 (given)

So;

dA/dt =  2πr * 2.5cm s-1

r = 15cm (given)

dA/dt = 2 * 3.142 * 15cm * 2.5cm s-1

dA/dt = 235.65 cm^2s-1

ZABC and ZQRS are supplementary angles.
If the measure of ZABC = 140°, what is the
measure of ZQRS?
O
mZQRS = [?]
Enter

Answers

40° is your answer

Answer:

:

< ABC+<QRS=180

m<QRS=180-140=40°

simplify (-2)^-3
a. -8
b. -1/8
c. 1/8
d. 8

Answers

Answer:

Its D because 2×2×2 equals 8 and they are both minus and knowing - times - makes + so it becomes 8

Answer:

B.) -1/8

Step-by-step explanation:

You flip the problem because of the negative exponent

[tex]\frac{1}{-2^3}[/tex]

This makes the exponent positive

Expand the denominator

(-2) * (-2) * (-2) = 4*(-2) = -8

1/-8 = -1/8

o put on Your Thinking Cap!
$ Challenging Practice
1.
Michelle got an average score of 80 on two tests. What score must
she get on the third test so that her average score for the three tests
is the same as the average score for the first two tests?

Answers

Answer:

Michelle must get an 80 on her next test to keep her average score.

Step-by-step explanation:

Since Michelle got an average score of 80 on two tests, to determine what score she must get on the third test so that her average score for the three tests is the same as the average score for the first two tests, the following calculation must be performed:

X / 2 = 80

X = 80 x 2

X = 160

X x 3 = 80 x 3

X x 3 = 240

X = 240/3

x = 80

So, Michelle must get an 80 on her next test to keep her average score.

Please help! What is the population of people?? Answer and explanation please! no links :\

Answers

Answer:

36043.305

Step-by-step explanation:

My brain is so tired I can't-

Multiply all the numbers with the information they gave you, then add them all.

I REALLY HOPE THIS HELPED MY BRAIN NEEDS A BREAK

11 divided by 3 2/3 with step by step explination

Answers

Answer:

3

Step-by-step explanation:

11/1 divided by 11/3

keep change flip to get:

11/1 x 3/11

and multiply to get:

33/11

Simplify to get:

3/1 or 3

Answer:

3

Step-by-step explanation:

step one is to make the fraction into a unbalanced fraction

step two is to make it a proper fraction by switching the values (I am talking about 2 2/3s so you know)

Then remove the greatest common factor, so 11, and only three remains

what is the answer. Evalute (2/3)2. Thank you

Answers

Answer:

4/3

Step-by-step explanation:

Answer:

hi

Step-by-step explanation:

[tex] { \frac{2}{3} }^{2} = \frac{4}{9} [/tex]

have a nice day

40 POINTS !! 40 POINTS !!

PLEASE HELP , DONT SKIP !

NO LINKS OR FILES.

Answers

Answer:

<5,2>

Step-by-step explanation:

Show all work to factor x4 − 10x2 + 9 completely.

Answers

Answer:

(x+3)(x-3)(x+1)(x-1)

Proof:https://www.symbolab.com/solver/step-by-step/x%5E%7B4%7D-10x%5E%7B2%7D%2B9

ten vegetable selections available, how many 3 vegetable plates can be made

Answers

10x9x8=270 plates can made

Bob mixed 5/8 cup of water and 1/8 cup of lemon juice in a cup. The rest of the mixture was lime juice. How much lime juice did Bob add if the cup was full?

Answers

Answer: thats a good question

Step-by-step explanation:

Answer: he will add 2/8 more so it can be full.

Step-by-step explanation: you divide 2/8 by 5/8 and you'll get 1/8.

please give me brainlest

The square of a whole number is between 400 and 500. The whole number must be between:

Answers

Answer: 20-23

Step-by-step explanation: 200^2 is 400 so the number must be greater and 23^2 is greater than 500 so it must be lass than 23.

What is 5 3/4 -1 5/12= ?

Answers

Answer:

4.33333333333 or 4 and 1/3

Step-by-step explanation:

Answer:

4 1/3

Step-by-step explanation:

1) Convert 5 3/4 to improper fraction.

2) Simplify 5x4 to 20.

3) Simplify 20+3 to 23.

4) Convert 1 5/12 to an improper fraction.

5) Simplify 1x12 to 12.

6) Simplify 12+5 to 17.

7) Find the least common denominator of 23/4 & 17/12.

8) Make the denominators the same.

9) Join the denominators.

10) Simplify 52/12 ( 4 1/3 )

Hope this helped!

​  

.

URGENT PLZ HELP!!!!!

Answers

Answer:

30% man this easy

Step-by-step explanation:

PLS GIMME BRAINLIEST PLS

A billard ball has a surface area of 84 square centimeters. What is the radius of the ball?​

Answers

Answer: √21/√pi

Step-by-step explanation: Surface area of ball is 4(pi)r^2. Divide 84 by 4 and get 21. Dividing 21 by pi and taking the square root therefore is the answer.

Can someone help me!

Answers

Answer:

m∠A = 48.81°

Step-by-step explanation:

Given triangle is a right triangle and we have to measure ∠A.

Since, opposite side and adjacent sides of angle A has been given

So we will apply tangent rule to get the measure of angle A.

tan(∠A) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]

tan(∠A) = [tex]\frac{8}{7}[/tex]

∠A = [tex]\text{tan}^{-1}(\frac{8}{7})[/tex]

∠A = 48.814

  ≈ 48.81°

if you add an exclamation I will give you a Brain list


A male animal can weigh up to 6,000 pounds.
How many tons is 6,000 pounds?
6,000 pounds is equivalent to what
tons.

Answers

Answer:

it would be 3 tons if I'm correct

Answer: 3 tons

Step-by-step explanation:

1 ton is equal to 2,000 pounds.

Divide 6,000 from 2,000 to find how many tons the animal weighs.

6,000/2,000=3.

Hope this helps!

Simplify: 90 - 5 (19 + 17-1-26)​

Answers

Answer:

QUESTION:

Simplify: 90 - 5 (19 + 17-1-26)​

ANSWER:

45

Step-by-step explanation:

I hope that this helps you out! :)    

Have a great rest of your day/night!    

Please thank me on my profile if this answer has helped you out.

BRAINLIEST FOR CORRECT ANSWER, IM FAILING SCHOOL AND NEED HELP ASAP. EVEN OFFICIAL HELP COUNTS

Answers

6 and 8 are vertical angles

the difference between the squares of two numbers is 32. twice the square of the first number increased by the square of the second number is 76. find the numbers.​

Answers

Answer:

The numbers are 6 and 2

6 squared = 36

2 squared = 4

So 36-4 = 32

And 36 x 2 = 72 + 4 = 76

What is the slope of the line through? (-4, 2) and (3, -3)?

Answers

Answer:

c. -5/7

Step-by-step explanation:

What is the volume of the figure?

Answers

Answer:

47.12

Step-by-step explanation:

same as the last question

The sum of 9 and a number is less than 12. Which of the following inequalities expresses the solutions ?

Answers

The answer is 2 cause If you subtract 12 from 9 you’ll get 2.

Evaluate r^2−s^2, when r=12 and s=5.

Answers

Step-by-step explanation:

Given r = 12, s = 5,

[tex] {r}^{2} - {s}^{2} = {12}^{2} - {5}^{2} \\ = 144 - 25 \\ = 119[/tex]

Consider function f, where B is a real number.

f(x)=tan(Bx)

Complete the statement describing the transformations to function f as the value of B is changed.

As the value of B increases, the period of the function (remains the same, increases, decreases), and the frequency of the function (remains the same, increases, decreases).
When the value of B is negative, the graph of the function (reflects over the y-axis, remains the same, reflects over the x-axis).

Answers

Using the concept of the tangent function, it is found that:

As the value of B increases, the period of the function decreases, and the frequency of the function increases. When the value of B is negative, the graph of the function reflects over the y-axis.

---------------------------------

Tangent function:

It is given by:

[tex]f(x) = \tan{Bx}[/tex]

The period is [tex]P = \frac{\pi}{|B|}[/tex].The frequency is [tex]F = \frac{1}{P} = \frac{|B|}{\pi}[/tex].

---------------------------------

The period is inversely proportional to B, thus, as B increases, the period decreases.Frequency is inversely proportional to the period, thus, as the period decreases, the frequency increases.When B is negative, we get [tex]f(x) = \tan{-Bx} = f(-x)[/tex], thus, the function is reflected over the y-axis, as the graph at the end of the answer shows, with f(x) is red(B positive) and f(-x) in blue(B negative).

---------------------------------

Considering the three bullet points above, the correct option is:

As the value of B increases, the period of the function decreases, and the frequency of the function increases. When the value of B is negative, the graph of the function reflects over the y-axis.

A similar problem is given at https://brainly.com/question/16828446

Answer:

got it right

Step-by-step explanation:

Amy buys 22 envelopes for 13p each and pays with a £5 note.
How much change does she get?
Give your answer in pounds, £.​

Answers

hi there lol have a great day
Other Questions
Find the 70th term of the arithmetic sequence 29, 17, 5 Help! Quickly! I beg thy to help. With perfect price discrimination, the marginal revenue curve A) is equal to the demand curve. B) is below the demand curve. C) is above the demand curve. D) is horizontal. An idea based on observations with no experimental evidence is a:a.Hypothesisc.Theoryb.Modeld.LawPlease select the best answer from the choices providedABCD Identify the terminal point for a 45 angle in a unit circle. Pls help asap giving brainliest waited for 5 hours oof Which category do both of these shapes belong to 2. Which contains the other, cell membrane or phospholipid? Eighth grade T.12 Surface area of cylinders FGU What is the surface area of this cylinder? Use as 3.14 and round your answer to the nearest hundredth. 4 cm 6 cm square centimeters Write the equation of the line that passes through the points (3, 4) and (5, 8) which expression can you substitute for x in 5x+y=8 to solve the system below? 5x+y=8x+4y=2 Consider the following two scenarios. Which exemplifies role strain and which exemplifies role conflict? Explain your reasoning. a. A nurse, who is supposed to make patients as comforable as possible, must give a patient a painful treatment. b. A nurse cannot concentrate while assisting with a medical procedure being performed on a close friend because the nurse is upset about the friend's condition. If the diameter of a penny is 19.05 mm on each penny is 1.52 mm thick, what is the approximate volume of the roll of the roll of pennies? Use 3.14 for pie and round your answer to the nearest tenth. i need help with this question asap This is for completion after you read "When Chocolate Was Medicine" What I already knew.i will give u brainly if its right :) Fill in the parentheses with the correct particle. Use X if no particle is needed. Do you think online shopping will cause lots of smaller shops to close down? coach cliffman made a deposit of $1,800 into an account that earns 2% annual simple interest. find the amount of interest that coach cliffman earned after 3 years A can of juice has a radius of 4 inches and a height of 7 inches. What is the volume of the can?Round your answer to the nearest tenths place. What is the unit rate for the proportional relationship represented by the equation y=4/5xAnswer choices:A:4/5B:-2C:4D:5