Mrs. Barker bought some books at a book sale, including 4 paperback books. 20% of all the books she bought were paperback. How many books did Mrs. Barker buy in all?

Answers

Answer 1

Answer:

20

Step-by-step explanation:

Number of paperback books = 4

Percentage of total books that were paperbacks = 20%

Let total number of books = x

Hence,

20% of total books = paperback books

20% of x = 4

0.2 * x = 4

0.2x = 4

0.2x / 0.2 = 4 / 0.2

x = 20

Total number of books = 20


Related Questions

How do I solve this problem? Please show me!

Answers

9514 1404 393

Answer:

   arc AB = 12.4 cm

Step-by-step explanation:

The length of arc AB is 1/4 of the circumference of the circle, so is ...

  AB = (1/4)(2πr)

  = (π/2)r = (3.14/2)(7.9 cm) = 12.403 cm

Rounded to the nearest tenth, arc AB = 12.4 cm.

Can someone help me please, ill give brainy

Answers

Answer:

x = -6

Step-by-step explanation:

The value of x never changes, no matter what the value of y is, so x = -6 describes every point on the line.

Jan spends part of her year as a member of a gym. She then finds a better deal at another gym, so she cancels her membership with the first gym after x months and spends the rest of the year, y months, with the second gym. The membership to the first gym costs $85 per month, while the membership for the second gym costs $50 per month. If she ended up spending a total of $705 over the course of the year, how much time did she spend at each gym?

Answers

Answer:

Jan spent 3 months at the first gym and 9 months at the second gym.

Step-by-step explanation:

Given that:

1 year = 12 months

x = months at gym one

y = months at other gym

According to given statement;

x+y=12      Eqn 1

85x+50y=705     Eqn 2

Multiplying Eqn 1 by 50

50(x+y=12)

50x+50y=600     Eqn 3

Subtracting Eqn 3 from Eqn 2

(85x+50y)-(50x+50y)=705-600

85x+50y-50x-50y=105

35x=105

Dividing both sides by 35

[tex]\frac{35x}{35}=\frac{105}{35}\\x=3[/tex]

Putting x=3 in Eqn 1

3+y=12

y=12-3

y=9

Hence,

Jan spent 3 months at the first gym and 9 months at the second gym.

Solve For X

please help, thank you :}

Answers

Answer:

4

Step-by-step explanation:

Answer is 4
X = 4
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Samantha says the fraction of the group of customers who ordered raspberry topping is 1/2. Explain why samantha is correct.

Answers

Answer and explanation:

Yes Samantha is correct. Samantha is correct because a fraction 1/2 of customers who ordered raspberry toppings refers to half of the total number of customers. A fraction 1/2 is 50 percent or 50/100 of the population of customers, therefore meaning that 50% or half of the total number of group of customers ordered raspberry toppings

The formula for the perimeter (P) of a rectangle is
P= 21 + 2w, where / represents the length and w represents
the width. What is the perimeter ofa rectangle that has a length of 68 centimeters and a width of 19 centimeters?​

Answers

Answer:

174

Step-by-step explanation:

L = 68

W=19

Use the formula given:

2 x 68 + 2 x 19 = 174

Can someone please help me with this question?

Answers

Answer:

Pretty sure added to

Step-by-step explanation:

The reason why it is added to because the plus sign adds stuff and it doesn't subtract, multiply, or divide.

Hope this helped!! :)

Brainliest?!?!


Sarah bought a car for $3500 and later sold it for
a 30% profit. How much profit did Sarah make in
the car?

Answers

Answer: 10

Step-by-step explanation:

budda dawg

PLEASE HELP!! WILL GIVE BRAINLEST ANSWERS

Answers

Answer:

4th one

Step-by-step explanation:

it is the 4th one

help pls i have 3 tests to do and this is due today

Answers

Answer:

The sum of any triangle is 180 degrees.

Step-by-step explanation:

Answer:

a = 60

b = 60

c = 60

d = 42

e=35

f=35

g=55

h=45

i=45

j=15

k=15

l=75

m=120

n=21

o=69

p=21

q=55

r=55

s=42

t=42

u=69

Step-by-step explanation:

PEDRO QUIERE SABER CUÁNTO PAPEL DE REGALO TENDRÍA QUE USAR PARA PODER FORRAR UNA CAJA CUADRADA DE 30 cm POR LADO.

Answers

I don’t speak Spanish I want to help you but I can’t sorry

HELPPPPPPPPPPPPPPPPPPPPPPP
The temperature at 7:00 a.m. was –9°F. By 4:00 p.m., the temperature had risen 10 degrees. What was the temperature at 4:00 p.m.?
Group of answer choices

-19

19

-1

1

Answers

Answer:

1

Step-by-step explanation:

-9+10=1

Answer:

1

Step-by-step explanation:

helpppppppppppppppppppppppppppp

Answers

Answer: i know p4 but what does the first q say?

Step-by-step explanation:

Answer:

2nd one

Step-by-step explanation:

3 1
(3.0 x 10 ) (5.0 x 10 ) = ?

Answers

Answer:

1500

Step-by-step explanation:

Parenthesis first, 3x10 is 30 5x10 is 50, 50x30 is 1500

Explain whether each is a linear equation

y = 1 - x

Answers

Answer:

In a linear equation in x and y, x is called x is the independent variable and y depends on it. We call y the dependent variable. If the variables have other names, yet do have a dependent relationship, the independent variable is plotted along the horizontal axis

:)

Answer:

This should be considered a linear substitution because you can substitute this equation into y in another linear equation to find the answer or the solution to the linear equation

Step-by-step explanation:

1. Write a system of equations to describe the situation. Then solve the system. Be sure to define your variables! Rizzo has $1.50 less in his piggy bank than his sister Shonda. If Shonda had $9 more, she would have three times as much money as Rizzo. How much money do each of the children have in their banks?

Answers

Answer:

The amount Rizzo has = x = $5.25

The amount Shonda has = y = $6.75

Step-by-step explanation:

Let us represent:

The amount Rizzo has = x

The amount Shonda has = y

Rizzo has $1.50 less in his piggy bank than his sister Shonda.

x = y - 1.50.......Equation 1

If Shonda had $9 more, she would have three times as much money as Rizzo.

y + 9 = 3(x)

y + 9 = 3x..... Equation 2

y = 3x - 9

We substitute 3x - 9 for y in Equation 1

x = y - 1.50.......Equation 1

x = 3x - 9 - 1.50

9 + 1.50 = 3x - x

10.50 = 2x

x = 10.50/2

x = $5.25

Solving for y

y = 3x - 9

y = 3(5.25) - 9

y = $6.75

Therefore:

The amount Rizzo has = x = $5.25

The amount Shonda has = y = $6.75

A physical therapy student is adding up the cost of books for the first three semesters of school. The first semester he spent $400, the second semester he spent $515, and the third semester he spent $620. What on average has he spent on books per year?

Answers

Answer:

Im not sure but i think 1535

Step-by-step explanation:

2 dot plots. The highlands have a mean rainfall of 15.27 millimeters, and the Lowlands have a mean rainfall of 12.05 millimeters.
Analyze the dot plots. What is the approximate difference between the means of the two data sets to the nearest whole number?

Answers

Answer:

it's 3mm

I hope this helped

Answer:

the answer is 3mm

Step-by-step explanation:

i did the answer and got it correct

A map has the scale 2 inches equals 190 miles. The distance from Springfield to Glenview is 14 inches. How many actual miles separate Springfield from Glenview?
A.
140
B.
2,800
C.
1,330
D.
38

Answers

Answer:

It would be C because

Step-by-step explanation:

2= 190

So what i did was i divide 190 to 2 and i got 95

and to the 14 I multiply it o 95 and i got 1,330

How i got 1,330 is that i read the question and looked at the answers which is a bigger number. So i thought it ain't adding or subtracting. So i decided to do dividing 190/2= 95 then i multiplied 14 to 95

Find the next two numbers in the number pattern.
6, 12, 9, 18, 15,

Answers

Answer:

30

Step-by-step explanation:

Starting number is 6, doubled, then returned to original number and added 3, then 6, then so on. Next set of numbers would be:

30, 24, 48, 38...

The product of two positive consecutive integers is 12. Find the
integers. *

Answers

Answer:

3, 4

Step-by-step explanation:

The choices for the consecutive integers are: 6, 7,  4, 5 or 3, 4

Test the products of these integers.

6 x 7 = 42

4 x 5 = 20

3 x 4 = 12

The only pair of consecutive integers with 12 as their products is 3 and 4.

PLEASE ANSWER I WILL GIVE YOU BRAINIEST IF CORRECT!!!!!!!
thanks!

Answers

Answer:

700 is your answer

Step-by-step explanation:

ok so 5x120=600 +100=700 so 700 is your answer

Simplify √(112x^2y). Please help!!​

Answers

Answer:

4x.sqrt(7y)

Step-by-step explanation:

Answer:

4x^y(square root) 7

Step-by-step explanation:

Kane is training for a Marathon. He starts by eunning 2 miles during every yriang sessiom. Each week plans to increase the distance of his run 1/4 mile

Answers

Question:

Write and expression to show the distance Kane runs in a training session after w weeks

Answer:

[tex]d = 2 + \frac{1}{4}w[/tex]

Step-by-step explanation:

Given

[tex]Initial = 2\ miles[/tex]

[tex]Rate= \frac{1}{4}[/tex]

Required

Write an expression

Let the distance covered in w weeks be d.

The expression for d is derived by:

[tex]d = Initial + Rate * w[/tex]

Substitute values for Initial and Rate

[tex]d = 2 + \frac{1}{4}* w[/tex]

[tex]d = 2 + \frac{1}{4}w[/tex]

Question 5
1 pts
5) If a person runs 1/3 mile in 1/9 of an hour, what is
the unit rate per hour?
A. 1/9 mi/hr
B. 1/3 mi/hr
C. 3 mi/hr
D. 9 mi/hr

Answers

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Alex paid $6 for renting a movie for 3 days. Which graph shows the relationship between the cost of renting the movie for different days

Answers

You need to show the graph. But it would show that on 0 days it costs 0 dollars.So on day One two and three it should be $6.

Answer:The graph will show that on 0 days it costs 0 dollars. On day 1,2, and 3 it will be $6

Step-by-step explanation:I hope this helps! Have a great day

Three vertices of quadrilateral ABCD are A(-4,3), B(-1,5), and D(4,-1), as shown below.

In order for ABCD to be a parallelogram, what must be the coordinates of point C?

A. (-1, -7)
B. (1.5, 2)
C. (2, -4)
D. (7, 1)

Answers

Answer:

my answer is letter c thats may answer

Solve for x.
3(x - 4) = 2x + 6
ΟΑ. Ο
B. 2
C. 3.6
D. 10
E. 18

Answers

Answer:

the answer is D. 10

Step-by-step explanation:

you get 3x -4 = 2x +6

you then subtract 2x from 3x and 2x

you get 1x - 4= 6

add 4 to both sides and you get

1x = 10 which is the same as x = 10

Answer:

x = 18

Step-by-step explanation:

3(x-4) = 2x+6

3x-12 = 2x +6

Add 12 to the -12 and the 6, giving you...

3x = 2x + 18

subtract 2 from the 3 and the 2, giving you...

1x = 18

divide the 1 and the 18 by 1, giving you...

x = 18

I hope this helps you out!

write in slope intercept form an equation of the line
(1, 2); m = -2

Answers

Y = 2
X = 1
M = -2
B = ?
y=mx+b
2=-2(1)+b
2= -2 + b
+2 +2
4 = b
Therefore the equation is
y = -2x + 4

Explain please I’m stuck

Answers

FYI - the length of the mid-segment of a trapezoid is equal to half the sum of the lengths of its bases.

the equation:

18 + 6x - 12 = 2(2x + 10)

18 + 6x - 12 = 4x + 20

6 + 6x = 4x + 20

6x = 4x + 14

2x = 14

x = 7

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