I went to Half Priced Books and purchased 15 books. I paid $2 each for some and $3 each for the rest of the books. How many $2 books did I buy if I spent $34?

Answers

Answer 1

Answer:

Thus the number of books at $2 is 9 books.

Step-by-step explanation:

The number of the book purchased = 15 books

Total amount spend to buy the books = $34

The prices of books are $2 and $3.

Let the number of books purchased at price  $2 = x

Let the number of books purchased at price  $3 = y

Now we have to find the number of books that is bought at $2.

Below are the equations.

x + y = 15

2x + 3y = 34

Now solve for the x,  

x + y = 15

y = 15 – x

Now insert it in the 2x + 3y = 34

2x + 3(15-x) = 34

2x + 45 – 3x = 34

-x = 34 – 45

x = 9

Thus the number of books at $2 is 9 books.


Related Questions

Inductive reasoning is based on
definitions.
facts.
patterns.
rules.

Answers

Your answer is option D rules

Answer:

patterns

Step-by-step explanation:

inductive reasoning is using past experiences to deduce future outcomes

A small bus charges $3.50 per person for a ride from the train station to a concert. The bus will run if at least 3 people take it, and it cannot fit more than 10 people. Function B gives the amount of money that the bus operator earns when n people ride the bus.

Answers

The minimum amount of money that the operator earns when n people ride the bus is $10.5 and the maximum amount of money that the operator earns when n people ride the bus is $35.

A small bus charges $3.50 per person for a ride from the train station to a concert.

The maximum capacity of the bus to carry the passengers is 10.

The minimum capacity of the bus to carry the passengers is 3.

Function B gives the amount of money that the bus operator earns when n people ride the bus.

Thus the value of 'n' is restricted between 3 to 10.

Therefore,

In general, the amount of money that the operator earns when n people ride the bus is given by the expression.

[tex]\rm{Amount}= \$3.5n[/tex]

The above amount can have minimum and maximum values.

Thus, the minimum amount of money that the operator earns when n people ride the bus is $10.5 and the maximum amount of money that the operator earns when n people ride the bus is $35.

To know more about it, please refer to the link:

https://brainly.com/question/13163364

An experienced computer technician can set up a network in 12 hours. It would take an intern 20 hours to set up the same network. If they work together, how long will it take to set up the network?

Answers

Answer:

X

Step-by-step explanation:

Answer:

ANSWER IS TIME

Step-by-step explanation:

time

[tex]x(x^2+8)=8(x+1)[/tex]x(x^2+8)=8(x=1)

Answers

Answer:

[tex]x=2[/tex]

Step-by-step explanation:

[tex]x\left(x^2+8\right)=8\left(x+1\right)[/tex]

Expand:

[tex]x\times x^2+8x=8x+8\times 1[/tex]

[tex]x^3+8x=8x+8[/tex]

Subtract 8x from both sides:

[tex]x^3+8x-8x=8x+8-8x[/tex]

[tex]x^3=8[/tex]

Cube root both sides:

[tex]\sqrt[3]{x^3} =\sqrt[3]{8}[/tex]

[tex]x=2[/tex]

-3(2y+4) is greater that equal to 12-4y

Answers

Answer:

y is less than or equal to -12

y<=-12

Step-by-step explanation:

Answer:

y≤12

Step-by-step explanation:

-3(2y+4)≥12-4y

-6y-12≥12-4y

-6y+4y≥12+12

-2y≥24

-2y÷2≤24÷2 (You have to flip the sign if you multiply or divide by a negative number)

y≤12

what are the first 4 terms in the sequence defined by the explicit rule f(n)=n²+2?

a 1 2 3 4
b 3 6 11 18
c 4 6 8 10
d 9 16 25 36​

Answers

Answer:

b

Step-by-step explanation:

What does it mean when two things are opposites?

Answers

Answer:

Step-by-step explanation:

differences

Answer:

They are total opposites

Step-by-step explanation:

Question 1. √80/6 Question 2. (2√5)^2

Answers

Answer:

Q1: is 0

Q2: is 20

Step-by-step explanation:

Q1: Divide the numbers 0 ÷ 6 = 0

√8 × 0

√8 = 2√2

2 × 0 × √2

Apply rule 0 × a = 0

Q2: Apply exponent rule : (a × b)^n = a^n b^n

2^2(√5)^2 = 2^2 (√5)^2

2^2 = 4

4 (√5)2

(√5)^2 = 5

4 × 5

Multiply the numbers: 4 × 5 = 20

What is the greatest common
factor of the following three
numbers?
12, 18,32​

Answers

the answer is 6
hope this helps

Answer:

2

Step-by-step explanation:

12:1,2,3,4,6,12

18:1,2,3,6,9,18

32:1,2,4,8,16,32

h.c.f = 2

What is f(4) if f(x)=3x+2

Answers

Answer:

f(4) = 14

Step-by-step explanation:

To evaluate f(4), substitute x = 4 into f(x), that is

f(4) = 3(4) + 2 = 12 + 2 = 14

81 minus 39




And can you explain how plz?. Lol i meed it asapp

Answers

Answer:

42

Step-by-step explanation:

[tex]81-39\\\\\mathrm{Line\:up\:the\:numbers}\\\begin{matrix}\space\space&8&1\\ -&3&9\end{matrix}\\\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}\\\begin{matrix}\space\space&8&\textbf{1}\\ -&3&\textbf{9}\end{matrix}\\\\\mathrm{The\:bottom\:number\:is\:larger\:than\:the\:upper\:number.\:\:Try\:to\:'borrow'\:a\:digit\:from\:the\:left.}\\\\\mathrm{Borrow\:}1\mathrm{\:from\:}8\mathrm{.\:\:The\:remainder\:is\:}7\\[/tex][tex]\begin{matrix}\space\space&\textbf{7}&10\\ \space\space&\textbf{\linethrough{8}}&1\\ -&\textbf{3}&9\end{matrix}\\\\\mathrm{Add\:}1\mathrm{\:ten\:to\:}1:\quad \:10+1=11\\\begin{matrix}\space\space&7&\textbf{11}\\ \space\space&\linethrough{8}&\textbf{\linethrough{1}}\\ -&3&\textbf{9}\end{matrix}\\\\\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:11-9=2\\[/tex]

[tex]\frac{\begin{matrix}\space\space&7&\textbf{11}\\ \space\space&\linethrough{8}&\textbf{\linethrough{1}}\\ -&3&\textbf{9}\end{matrix}}{\begin{matrix}\space\space&\space\space&\textbf{2}\end{matrix}}\\\mathrm{In\:the\:bolded\:column,\:subtract\:the\:second\:digit\:from\:the\:first}:\quad \:7-3=4\\\\\frac{\begin{matrix}\space\space&\textbf{7}&11\\ \space\space&\textbf{\linethrough{8}}&\linethrough{1}\\ -&\textbf{3}&9\end{matrix}}{\begin{matrix}\space\space&\textbf{4}&2\end{matrix}}[/tex]

y = -1/3x + 2
y = 3x - 5

Answers

I think it’s 2 not for sure

Which of the following statements is NOT true?

1. If the endpoints of a segment are (3,0) and (0,3) , the length of the segment is approximately 4.24 units.

2. If the endpoints of a segment are (3,3) and (5,-5), the length of the segment is approximately 4.24 units

3. The Pythagorean theorem can be used to find the length of a segment.

4. The distance formula can be used to find the length of a segment.

Answers

Answer

it think it is 2 and 4 if i am wrong i will edit my work

Step-by-step explanation:

Which shows a set of three equivalent decimals? 0.8, 0.08, 0.800 0.8, 0.80, 0.800 8.0, 0.80, 0.800 8.0, 8.00, 0.800

Answers

Answer:

they are all equivilent

Step-by-step explanation:

Answer:

B. 0.8, 0.80, 0.800

Step-by-step explanation:

Four people P, Q, R and S have to sit on the four stools marked 1, 2, 3 and 4.


P goes and sits down on stool 4. Q does not want to sit on a stool that is immediately next to P's. Keeping this in mind, in how many different ways could Q, R and S arrange themselves on the remaining stools?


A) 6
B) 4
C) 3
D) 2

Answers

the answer is B I’m pretty sure

Each graph shows two polygon's A B C D and A' B' C' D in each case, describe a sequence of transformation that takes A B C D to A 'B 'C' D' So basically l need help describing the sequence of transformation​

Answers

Answer:

1. Reflection across y-axis and translated down 1 unit

2. 270 degree counterclockwise rotation and translated right three units.

Step-by-step explanation:

For number 1, when you reflect across the y-axis, the polygon is one unit above the intended location, so you would move it down one.

For number two, when you rotate it 270 degrees counterclockwise, it is to the left three units, so you would move it to the right three units.

A student walked for 30 minutes at an average speed of 18 meter/min. What is the student’s distance traveled?
-:---:--

0.17 meters

9 meters

54 meters

540 meters

Answers

the answer is 540 meters

A candy company has orders for chocolate bars feom 5 different stores. Each order dontains 45 chocolate bars. Use he distrubutive property to digure out how many chocolate bars the candy company needs to make

Answers

Answer:

CANDY diabeatise sgdigduejsdid

i’m sorry but i genuinely don’t know the answer

The temperature was -6°F. It rose so that the temperature was 0°F. What integer represents the change in temperature?

Answers

Answer:

f + 6

Step-by-step explanation:

Evaluate 4/3


please help!

Answers

Answer:

1.33333333333

Step-by-step explanation:

Complete the Table
Input. Output
1 6
2 10
3 14
4 18
5 22
... ...
n ?​

Answers

Answer:

N, which is the increment is 4

Kathy wants to do a fundraising for her school. She can’t sell more than 6 pies of cheese pizza and she can sell at least most 5 pies of pepperoni pizza. Kathy can only have a total of 10 pizza pies. Hint: Kathy can’t sell negative pies of pizzas.

What is the two inequalities?

Answers

Answer:

x≤6

y≤5

x+y≤10

Step-by-step explanation:

8. Mason bought a pair of running shoes for $36.98. If the sales tax is 6.5%, how much
did he pay in total?

Answers

Answer:

$39.38

Step-by-step explanation:

$36.98 * 6.5%= 2.4037

2.4037 + 36.98= 39. 3837

round up

$39.38

Answer:

39.38

Step-by-step explanation:

A line with a slope of 1/7 passes through the points seven and one what is it equation in slope intercept form

Answers

Answer:

y=1/7x

Step-by-step explanation:

Plug into Point slope form:

y - 1= 1/7( x -7)

y -1 = 1/7 x -1

y -1 +1 = 1/7x -1 +1

y= 1/7x

9) What two operations are needed to solve 2x - 4 = 16?
a. Addition & division
b. Addition & subtraction
c.Multiplication & subtraction

Answers

Answer:

a. Addition & division

Step-by-step explanation:

2x - 4 = 16   (adding 4 to both sides)

2x  = 16 + 4

2x = 20  (dividing both sides by 2)

x = 20/2 = 10

Hence we can see that the two operations are addition and then division

sue withdrew $85 a month from her savings account for 7 months. what was the change in her balance?

Answers

Answer:

-595 was the change in her balance

Step-by-step explanation:

85*7=595

Withdrew=Negative(-)

I need help understanding this ASAP PLZ!!!!

Answers

Answer:

[tex]x\geq -2[/tex]

Step-by-step explanation:

well the values for x are from -2 to ∞

so we can write it as

[tex]x\geq -2[/tex]

Please help it’s easy!2nd time asking
Choose the equation that represents this situation. Use wto represent the
variable.
Blaise spends 4 hours each week jogging at the track. This is three times the
amount of time he spends working out in the weight room. How much time
does he spend in the weight room each week?
A.3w=4
B.w=3•4
C.3+w=4
D.4w=3

Answers

Answer:

A: 3w=4

Step-by-step explanation:

4hrs= time at track

track= three times weight room

3times weight room = 4

Solve.
|9x +4| = |x- 7|

Answers

Answer:

equation calculator type it in and it'll show h STEP by step and also give u the answer while teaching you.

Answer:

x = 11/8

Step-by-step explanation:

9x + 4 = x - 7

9x - x = -7 - 4

8x = 11

divide both sides by 8

8x/8 = 11/8

x = 11/8


If mTUV = 9x + 1, and mTUW = 7x - 15, and mWUV = 5x - 11, find the x pls help I will make u Brian list plsssssss

Answers

Answer:

the value of x in this problem is 9

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