8 books cost \$19.60$19.60dollar sign, 19, point, 60.

Which equation would help determine the cost of 101010 books?

Answers

Answer 1

Final answer:

The cost of 10 books can be found by dividing the total cost for 8 books ($19.60) by 8 to get the cost per book ($2.45), and then multiplying that by 10 to get the total cost ($24.50).

Explanation:

To determine the cost of 10 books if 8 books cost $19.60, we need to establish the price per book and then multiply that by 10. First, let's calculate the cost per book by dividing the total cost by the number of books:

Cost per book = Total cost ÷ Number of books = $19.60 ÷ 8 books = $2.45 per book

Now, using the cost per book, we can find the total cost for 10 books:

Total cost for 10 books = Cost per book × 10 = $2.45 × 10 = $24.50

Therefore, the equation that would help determine the cost of 10 books is:

Cost = $2.45 × Number of books

In this case, for 10 books, the cost would be:

Cost = $2.45 × 10


Related Questions

If a circle has a radius of 17 cm. What is the circumference of the circle ?

Answers

Answer:

106.81 cm or 107 cm.

Step-by-step explanation:

The formula for finding the circumference (perimeter) of a circle is 2 times pi times r or the radius of the circle, or you can find the diameter by multiplying the radius by 2, in this case 34 and multiply that by pi. The diameter is 34 so multiply that by pi and you get 106.81 cm as an approximate. Hope this helps!

The circumferences of the circle is 106.76 cm.

What is circumferences?

The circumference is the length of any great circle, the intersection of the sphere with any plane passing through its centre.

Given that, a circle has radius = 17 cm

We know that, circumference = π × diameter

diameter = 2 × radius = 17 × 2 = 34

circumference = 34 × 3.14 = 106.76 cm

Hence, the circumference of the circle is 106.76 cm

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What is the approximate surface area of the sphere?

Answers

Calculating the Surface Area of a Sphere:
In plain english the surface area of a sphere can be calculated by squaring the radius, multiplying the result by PI, and finally multiplying by 4. You can approximated PI using: 3.14159.

88 out of 132 in fraction form

Answers

Answer:

[tex]\frac{2}{3}[/tex]

Answer:

2/3

Step-by-step explanation:

Divide both the numerator and denominator by the GCD

88 ÷ 44

132 ÷ 44

Reduced fraction:  

2

3

Therefore, 88/132 simplified is 2/3


What is the probability of picking an orange marble and flipping tails?

there are 7 marble, one of them is orange. and there is one coin next to them

a. 1/7

b. 8/14

c. 2/14

d. 1/14

Answers

Answer: D) 1/14

Work Shown:

There is 1 orange marble out of 7 total. The probability of picking an orange marble is 1/7. Let A = 1/7 which we'll use later.

The probability of flipping tails is 1/2 because 1 side is tails out of 2 sides total. Let B = 1/2

Multiply A and B

A*B = (1/7)*(1/2) = (1*1)/(7*2) = 1/14

This represents the probability of getting an orange marble and flipping tails.

We are able to multiply the probabilities because the two events (picking a marble and flipping a coin) are independent.

Answer:

The answer would 1/14 :)

Step-by-step explanation:

What’s the answer????

Answers

Answer:

21

Step-by-step explanation:

Answer:

105 pages in 7 minutes

Step-by-step explanation:

cross multiply

hope this helped

What’s 3/8 off 20 inches

Answers

Answer:

I think the answer is 1'8 3'8

Answer:

Step-by-step explanation:

Can someone help me?

I’m stuck

BRAINLEST!!

Answers

Answer:

A

Step-by-step explanation:

Lateral surface area = surface area - bases

2(8(11) + 8(5)) =

256 <--- Lateral Surface Area

The bases have areas of 11*5 = 55

Multiply that by 2 and add to 256

256 + 110=

366 <---Surface Area

Please help due at 11:45 I really do t understand please help!!!!

Answers

1. C. Exponential form. Exponential form is just taking one number and raising it to another number. Example: 2^3

2. H. Power is correct. A power is the upper number of an exponential.

3. G. Perfect square. Squaring a whole number represents the area of a square, which is where the term comes from.

4. J. Quotient. A quotient is a result of dividing two numbers.

5. D. Expression. An expression is anything that involves numbers and variables. Specifically using the order of operations on them or some kind of math function.

6. i. Product. A product is a result of multiplying two or more numbers or variables.

7. E. Factors. In this case, it shows 12 having the factors: 1, 2, 3, 4, 6, 12. Factors of 12 are numbers that pair up and multiply to get 12, so for instance 3*4 = 12.

8. A. Base. You are correct. Nice work. The base of an exponential expression is the lower number or variable.

9. B. Expanded form. This is showing it being fully factored as much as possible.

10. F. Perfect cube. A perfect cube is a number that results in taking any whole number and multiplying it by itself 3 times. Example: 7 cubed = 7^3 = 7*7*7 = 343

help me pls !!
(Extra points)

And I need to explain it.

Answers

Answer:

true

Step-by-step explanation:

1. simplfy the expression to 7^2 *8/7^3=8/7.

2. that'll give u 8/7=8/7

Please help me with #3.

Answers

Answer:

Total lateral surface of the pyramid = 54 [tex]cm^{2}[/tex]

which agrees with the first listed answer.

Step-by-step explanation:

Notice that the pyramid has for base an equilateral triangle of base 5 cm, and has three lateral triangles which have all the same dimensions for their base (5 cm - since they are all connected to the base of the pyramid), and their height (7.2 cm).

The actual LATERAL surface, includes only the surface of the three lateral triangles.

We use the formula for the area of a triangle: [tex]Area=\frac{base \,*\, height}{2}[/tex]

to calculate the area of each lateral triangle:

[tex]Area=\frac{5\,cm \,*\, 7.2\,cm}{2} \\Area=18 \,cm^2[/tex]

and then multiply the result by three (to account for the three lateral faces)

Therefore, the total lateral surface is:

Total lateral surface = 3 * 18 = 54 [tex]cm^{2}[/tex]

What is the value of x? 6 8 10 12

Answers

Answer:

Its 8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

a student is helping decorate a bulletin board that is 5 feet long and 4 feet tall.. He needs to cut a piece of yarn to run along the diagonal from the top left to the bottom right of the board.

Answers

If you need to find how big of a rope you need, you would need 9 feet of rope to wrap around the 5ft and the 4ft!

I hope this helped! Mark me Brainliest! :) -Raven❤️

Answer:

6.40312424 feet

Step-by-step explanation:

using the pythagreons theorm you can find the missing side

a^2 + b^2 =c^2

5 x 5 + 4x4 = 41

then you find the square root of 41

the length would be 6.40312424 feet

What is the common ratio of the sequence?
-2, 6, -18, 54,...
0 -3
O -2
3
08

Answers

The answer is 8 but I’m not really sure tno

Answer:

Step-by-step explanation:

To find the common ratio

First term=-2

r=6/-2

r=-3

Or

r=54/-18

r=-3

- What is the slope from the points (2, 3) and (-3,-1) *

Answers

Answer:

4/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

   = (-1 -3)/(-3 -2)

    =-4/-5

    = 4/5

We can use the points (2,3) and (-3,-1) to solve.

Slope formula: y2-y1/x2-x1

= -1-3/-3-2

= -4/-5

= 4/5

Best of Luck!

A wire is needed to support a vertical pole 18 feet high. The cable will be
anchored to a stake 10 feet from the base of the pole. How much cable is
needed?

Answers

19.698 feet of cable would be needed, this would round up to 20 feet total.

At Pizza Pi, 64% of the pizzas made last week had extra cheese. If 16 pizzas had extra cheese, how many pizzas in all were made last week?

Answers

Answer:

There were 25 pizzas made last week.

Step-by-step explanation:

It is given that 64% of the pizzas had extra cheese and 16 pizzas had extra cheese. So it means that 64% is equals to 16 pizzas. In order to find how many pizzas were made, you have to find the remaining percentage of pizzas without extra cheese by subtracting 64% from 100% :

100 - 64 = 36 % of pizzas without extra cheese

64 % = 16 pizzas

1 % = 1/4 pizza

36 % = 9 pizzas

We have found out that 9 pizzas were made without extra cheese. The total pizzas were made last week is 25 pizzas (including extra cheese and no extra cheese) :

Total = Extra Cheese + No extra cheese

= 16 + 9

= 25 pizzas

Work out the area of this circle.
Take a to be 3.142 and write down all the digits given by your calculator.
13 cm

Answers

Final answer:

The area of the circle is found by substitifying the radius into the formula A = πr². In this case, with a given radius of 6.5 cm and π as 3.142, the calculated area is approximately 132.732 square centimeters.

Explanation:

To find the area of a circle, you use the formula A = πr², where A represents the area, π is a mathematical constant whose value is given as 3.142 in this case, and r is the radius of the circle.

Since the radius (r) is not directly mentioned in the question, we should understand that the given 13 cm refers to the diameter of the circle, hence the radius will be half, i.e., 13/2 = 6.5 cm.

Substituting these values into the formula gives: A = 3.142 * (6.5)². When you perform the calculation, the result would be about 132.732 square centimeters.

Learn more about Area of a Circle here:

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An atom of lithium has 3 protons 4 neurons and 2 electrons.

What is the overall charge on this atom

A) -3

B) -1

C) +1

D) +3

Answers

Answer:

positive 1

Step-by-step explanation:

hope it helps.

give me the brain PLZ:)

Corri needs to get milk, eggs, bread, and cereal at the store. Since the bread is close to the cereal, Corri always picks up the cereal right after getting bread. List all of the different combinations of ways she can pick up the items she needs. Use the first letter of each item in your list (M, E, B, C)

Answers

Answer:

bread

cereal

milk

eggs

Step-by-step explanation:

Answer:mebc,embc, bcem,bcme.

Step-by-step explanation:

The radius of a circle is 1 inch. What is its circumference?

Answers

Step-by-step explanation:

use the image below to help

a(x−b) +bx+c=a+b solve for x helpp

Answers

Answer:
a + b + ab - c
x = ———————-
a + b


Simplify the expression -2(p+4)^2-3+5p what is the simplified expression in standard form?

Answers

Answer

I got p-19 i might be wrong

Step-by-step explanation:

Answer:

brainliet plssssss

Step-by-step explanation:

Let's simplify step-by-step.

−2(p+4)^2−3+5p

Distribute:

=−2p^2+−16p+−32+−3+5p

Combine Like Terms:

=−2p^2+−16p+−32+−3+5p

=(−2p^2)+(−16p+5p)+(−32+−3)

=−2p^2+−11p+−35

I have a math problem. I don't know were to start here's my problem. You have 3 cards in front of you, on one side there's a letter either R, V or B. On the other side there's a hidden number. Find the 3 number's. Here's the information we already know:
1) R+V=B
2) V+B= 180
3) 5xB=V
I need help!!!

Answers

The answer will be 21

Find the value of x, then use this value to determine the measure of each of the angles.



x =

The measurement of angle AOB = degrees.

The measurement of angle COB = degrees.

Answers

Answer:

x=15

AOB= 15

COB= 165

Step-by-step explanation:

What is the area of this trapezoid?



Enter your answer in the box.

units2


Answers

Answer:

153 units squared

Step-by-step explanation:

A= 1/2 (b1 + b2)h

A= 1/2 (10+24)9

A= 1/2 (34)9

A= 1/2 306

A= 153

Answer:

Step-by-step explanation:

a = 7+10+7 = 24 units

b = 10 unit

h = 9

Area=(a + b)*h / 2

[tex]=\frac{(24+10)*9}{2}\\\\=\frac{34*9}{2}\\\\=17*9\\\\=153 unit^{2}[/tex]

A rectangle is 8 feet long and 9 feet wide. What is its perimeter?

Answers

Answer:

34 feet

Step-by-step explanation:

(Length + Width) x 2

Answer:

It would be 34

Step-by-step explanation:

You would add up the sides by doing 8+8+9+9 or (8x2)+(9x2)

Melissa is saving $25 that she earned for washing her mom’s car. She earns $10 every week for doing chores, which she also saves. Which function can be used to find t, the amount of money Melissa will have saved at the end of n weeks of doing chores?

Answers

Answer:

t = 10n + 25

Step-by-step explanation:

At the end of n weeks, the total amount that Melissa would have can be found by the function, t = 25 + 10n.

Melissa made $25 from washing her mother's car and keeps it aside.

She then makes $10 every week. This means that in n number of weeks, the amount she would have made from chores is:

= Amount per week x number of weeks

= 10 x n

= 10n

The total she would then have in n weeks is:

= Amount saved from mother + Amount earned from chores in n weeks

= 25 + 10n

This total is t, so the total function is t = 25 + 10n.

Find out more at https://brainly.com/question/23241041.

What is the domain and range of the graph

Answers

Domain: [-1, 0] U [5, 0]

Range: [0, -6] U [0, 4]

Answer:

[tex]D={x,-1<=x<=5}, R={y,-6<=y<=4} [/tex]

Step-by-step explanation:

by graphing interpretation, horizontal range is the domain and vertical range is the range. buat your problem is an oval which not a function.

Solve 5 - 2x < 7. Please help me

Answers

Answer:

x > -1

Step-by-step explanation:

Answer:

[tex]x>-1[/tex]

Step-by-step explanation:

[tex]5 - 2x < 7[/tex]

[tex]5-2x-5<7-5[/tex]

[tex]-2x<2[/tex]

[tex]$\frac{2x}{2}>\frac{-2}{2}$[/tex]

[tex]x>-1[/tex]

do the side lengths 4.1,8.2,and 12.2 for a triangle

Answers

Answer:

Step-by-step explanation:

Three line segments can form a triangle if the length of the longest segment is greater than the sum of the lengths of the shorter segments.

4.1 + 8.2 > 12.2

12.3 > 12.2

true 

They can form a triangle.

Now if c is the length of the longest side and a and b are the lengths of the shorter sides, then:

- if , [tex]c^{2}[/tex] = [tex]a^2 + b^2[/tex] the triangle is right

- If [tex]c^2 < a^2 + b^2[/tex]

- if  [tex]c^2 > a^2 + b^2[/tex] the triangle is obtuse

[tex]4.1^2 + 8.2^2 = 16.81 + 67.24 = 84.05\\12.2^2 = 148.84\\148.84 > 84.05[/tex]

The triangle is obtuse.

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