A store sells hardcover books for $8 and paperback books for $5. You buy 7 books, represented by the equation x + y = 7, where x is the number of hardcover books and y is the number of paperback books. The equation 8x + 5y = 44 represents the total cost. How many of each type of book did you buy?

Answers

Answer 1

Answer:

You bought 3 hardcover books and 4 paperback books.

Step-by-step explanation:

8×3+5×4=44


Related Questions

PLZ HELP ME


6÷2(1+2)=?????

Answers

9

6/2x3

3x3

9

Hope I helped

Simplify as fully as possible
4x²y^4 × (3xy²)² / 2x²y×4xy^9

Answers

Answer:

The answer is ;

9x/2y^2

Step-by-step explanation:

Here, we want to simplify as far as possible

Let us take all the numbers one after the other

All numbers on numerator and denominator;

(4 * 9)/(2 * 4) = 9/2

All x

(x^2 * x^2)/(x^2 * x) = x

All y

(y^4 * y^4)/(y * y^9) = y^8/y^10 = 1/y^2

So the complete answer is;

9/2 * x * 1/y^2

= 9x/2y^2

Solve 37+z≤54
then graph the solution

Answers

This is the answer I think

What are the solution(s) of x squared minus 4 = 0

Answers

Answer:

x=2 or x= -2

Step-by-step explanation:

x^2 - 4 = 0

x ^2  − 4  +  4  =  0 + 4  

x^2 = 4

√ ( x ^2 ) = √ 4

=  ±  2  =  { x 1 = − 2

              x 2 = 2

Answer:

X=2 or X=-2

Step-by-step explanation:

x^2 - 4 = 0

x ^2  − 4  +  4  =  0 + 4  

x^2 = 4

√ ( x ^2 ) = √ 4

=  ±  2  =  { x 1 = − 2

             x 2 = 2

100 points! Help please! Due at midnight. I will mark brainliest. No random answers please or I will report u :)

Answers

The friend is incorrect because 2 translations would just move the shape to a different area, then a reflection would reflect it.

Long story short: if you do to translations that only move in one direction for ex. X+10 y+ 0 then it will be a glide reflection

Answer:

"My" friend is incorrect because, two translations would just move to it to a different area. While a reflection on the other hand will create that reflection that we need.

Step-by-step explanation:

if tile cost 2.00 a square foot, how much would it cost David to tile his entire kitchen?

Answers

Answer:

depends on how big his kitchen is

Step-by-step explanation:

His kitchen could be big and it can be small so it depends on how big his kitchen is

Kara's family is thinking about renting an SUV that can travel 6 2/3 miles on 1/6 gallon of gas. Kara wants to know the gas mileage of the SUV.

Answers

Answer: 40

Step-by-step explanation:

Find the reciprocal of the divisor

1/6: 6/1

Multiple it with the dividend

20/3 divided by 1/6= 20/3 x 6/1

20x6 = 120

3x1 = 3

Reduce the fraction: 40/1

Answer:
1st Answer: miles per gallon
2nd Answer: 40
3rd Answer: 1000
Step-by-step explanation:
i just did it on iready and got it right. have fun cheating c:

Xi-ling has a net income that is 5% of her monthly salary of $2,315. Xi-ling would like to keep a net income of $50 and put any additional money towards paying down debt. How much more can Xi-ling put towards paying down debt each month?
a.
$55.75
b.
$65.75
c.
$115.75
d.
$165.75

Answers

Answer:

it going be b 65.75

Step-by-step explanation:

just did test

The total amount of money put down by Xi-ling monthly  is mathematically given as

y=65.75

What is the total amount of money put down by Xi-ling monthly?

Question Parameters:

Xi-ling has a net income that is 5% of her monthly salary of $2,315. Xi-ling would like to keep a net income of $50

Generally,  5% of her monthly salary   is mathematically given as

x=0.05*2315

x=115.75

Therefore, if she has a net income equal to 115.75

y=115.75-50

y=65.75

Xi-ling puts y=65.75 towards paying down debt each month.

For more information on Arithmetic

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Answers

Answer:

m<1 = 54

m<3 = 54

m<4 = 126

Step-by-step explanation:

<1: <2 and <1 are supplementary angles.

<3: <2 and <3 are supplementary angles. <1 and <3 are vertical angles.

<4: <2 and <4 are vertical angles.

Supplementary angles equal to 180 degrees.

Vertical angles are equivalent.

Let's solve for <1.

<2 + <1 = 180 --> Due to supplementary angles

126 + <1 = 180 --> Substitution

126 + <1 - 126 = 180 - 126 --> Subtracted 126 on both sides

<1 = 54 --> Simplified

Let's solve for <3.

<3 = <1 --> Due to vertical angles

<3 = 54 --> Substitution

Let's solve for <4.

<4 = <2 --> Due to vertical angles

<4 = 126 --> Substitution

Therefore, m<1 = 54, m<3 = 54, and m<4 = 126

Hope this helped! <3

Answer:

1 is 54 degrees

3 is also 54 degrees

4 is 126 degrees

Step-by-step explanation:

If you would like an explanation then ask me in the comments and I will type one. :)

Please help with all thank you!!! Brainliest will be given!!

Answers

Answer:

1) Strong correlation

2) no correlation

3a) 2008       3b) 47       3c) The authors are trying to communicate the number of male teachers in different school years

4b) inches of rain (r) = (around) 0.6

Step-by-step explanation:

Brian goes to schol 6 hours per day, works 4 hours perday, and sleeps for 9 hours per day. What is the ratio of hours Brian works to hours Brian sleeps?

Answers

6:4:9 is the answer

The ratio of hours Brian works to hours Brian sleeps is 4/9.

What is ratio?

A ratio is a comparison between two amounts that is calculated by dividing one amount by the other. The quotient a/b is referred to as the ratio between a and b if a and b are two values of the same kind and with the same units, such that b is not equal to 0. Ratios are represented by the colon symbol (:). As a result, the ratio a/b has no units and is represented by the notation a: b.

Given:

Brian goes to school 6 hours per day, works 4 hours per day, and sleeps for 9 hours per day.

So, the ratio of hours Brian works to hours Brian sleeps

= 4/ 9

Hence, the ratio is 4/9.

Learn more about ratio here:

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A cylinder has a volume of 198 cm3, and its base has an area of 22 cm2. What is the height of the cylinder? V= πr²h

Answers

Answer:

The height of cylinder is 9 cm

Step-by-step explanation:

Volume of cylinder = 198 cm³

Base Area = 22 cm²

We need to find height of the cylinder

The formula used is: [tex]Volume\:of\:cylinder=\pi r^2h[/tex]

Where [tex]Base\: Area = \pi r^2[/tex]

First we need to find radius r

[tex]Base\: Area = \pi r^2\\22=3.14\: r^2\\r^2=\frac{22}{3.14}\\r^2=7\\Taking\: square\: root\: on\: both\: sides\\\sqrt{r^2}=\sqrt{7}\\r=2.656[/tex]

So, we get radius r = 2.656

Putting values of volume and radius are to find height

[tex]Volume\:of\:cylinder=\pi r^2h\\198=3.14(2.656)^2h\\h=\frac{198}{22}\\h=9[/tex]

So, the height of cylinder is 9 cm

There are 3 boys for every 5 girls in Ms. Clancy's class. Ms. Strayhorne's class has 4 boys
for every 6 girls. If each class has 12 boys, which class has fewer girls?|

Answers

Answer:

Ms. Strayhorne's class

Step-by-step explanation:

12÷3=4 | 5·4= 20 | 20 girls in total

12÷4=3 | 3·6=18 | 18 girls in total

Which number is irrational?

Answers

Answer:

The square root of 3

Step-by-step explanation:

c last answer

Answer:

[tex]\sqrt{3}[/tex]

Step-by-step explanation:

It cannot be written as a fraction.

Hope this helped, make sure to make this brainiest, thank you.

I will give Brainliest Answer !! Please help

Answers

I would help you but i don’t know what the answer is
Answer x = 13 cause math

Animal Kingdom - You won the lottery and decided to buy all of the cats and dogs at a shelter and let them all roam free on a farm. You forgot to ask exactly how many dogs and how many cats they were giving you, but you know that there are 152 animals altogether and there are 3 times as many dogs as there are cats. Write an equation to find out the number of dogs and cats and then solve it.​

Answers

Answer:

3x=152

Step-by-step explanation:

You know that there are 152 animals intotal so that goes at the end. if we say that the dogs are x because we dont know how many there are, then there are 3 times more cats then there are x.

A customer paid 9x + 11y dollars for a bag that contains x pounds of chocolate and y pounds of almonds.

Which statements about the expression are true?

Select the three statements that are true.

The amount the customer paid, in dollars, for the chocolate in the bag is 9x.

O The amount the customer paid, in dollars, for the chocolate in the bag is 11y.

The total weight of the bag of chocolate and almonds is 9x + 11y.

The total weight of the bag of chocolate and almonds is x + y.

The cost per pound of the chocolate is $11.

The cost per pound of the almonds is $11.

Answers

Answer:

*The amount the customer paid, in dollars, for the chocolate in the bag is 9x.

*The total weight of the bag of chocolate and almonds is x + y.

*The cost per pound of the almonds is $11.

Step-by-step explanation:

A customer paid 9x + 11y dollars for a bag that contains x pounds of chocolate and y pounds of almonds.

From the above questions, we know that:

The weight of Chocolate = x pounds

The weight of Almonds = y pounds

The cost per Chocolate = $9

The cost per Almonds = $11

Therefore, the three statements that are true are:

* The amount the customer paid, in dollars, for the chocolate in the bag is 9x.

* The total weight of the bag of chocolate and almonds is x + y.

*The cost per pound of the almonds is $11.

Which of the following would be in the solution set to the system of inequalities given below?

(-4,0)
Both (-4,0) and (0,2)
No solution
(0,2)

Answers

Answer:

(-4,0)

Step-by-step explanation:

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(-4,0) is the solution of the set to the system of inequalities

What is Inequality?

a relationship between two expressions or values that are not equal to each other is called 'inequality.

The given two inequalities are

y<-3x-6 and 4x-2y<-8

Let us check for (-4, 0)

0<-3(-4)-6

0<6

4x-2y<-8

4(-4)-2(0)<-8

-16<-8

So (-4, 0) is the solution of the inequalities.

Now let us check for (0, 2)

replace y value as 2 and x as 0.

2<-3(0)-6

2<-6

Which is not true.

Hence, (-4,0) is the solution of the set to the system of inequalities.

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17. Pour faire des petits cadeaux à ses proches, Johanne a décidé d'acheter
des petites feuilles en sucre d'érable au coût de 1,14$ chacune. Si elle a
dépensé 13,68$ au total, combien de feuilles a-t-elle achetées ?​

Answers

Answer:

12

Step-by-step explanation:

divisez 13.68 par 1.14 et vous obtenez 12.

Pour confirmer votre réponse, multipliez 1.14 par 12 et vous obtiendrez 13.68 (ce avec quoi vous avez commencé)

plssss say this makes sense i know absolutely nothing about french

4
1. In the equation y = x + 5, what is the slope and
=
y-intercept?
m =
b=

Answers

Answer:

m = [tex] \frac{4}{3} [/tex]

b = 5

the correct answer is c

Add. Express your answer as a fraction. Do not include spaces in your answer.
5/1/4+15.5

Answers

Answer:

The answer is 20/3/4(without spaces) or 20 3/4.

Step-by-step explanation:

Answer  :83/4

Step-by-step explanation:

Yellow Cab Taxi charges a $1.75 flat rate in addition to $0.75 per mile. Katie has no more than $10 to spend on a ride. How many miles can Katie travel without exceeding her limit?

Answers

Answer:

11 miles

Step-by-step explanation:

10-1.75=8.25

8.25÷.75=11

A coordinate plane with Number of Text Messages on the x-axis and Number of Minutes Used on the y-axis, with points plotted at, (10, 20), (20, 40), (30, 60), and (40, 80).
A prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, the number of text messages sent and received. Is there a direct variation? Which equation represents the relationship?

Yes, y = 2x.
Yes, y = 20x.
No, y = x + 10.
No, y = x + 20.

Answers

Yes y=2x that is the answer

Answer:

y=2x or "A" is correct

Step-by-step explanation:

9.) The diagram below shows the dimensions of a shelf on a bookcase. What is the measure of storage
space of the shelf in square inches?
6.7 in. / 5.2in. / 4.3in. / 15.5in. / 7.3in. /
A. 66.65 in2
B. 34.7 in?
C. 57.72 in2
D. 47.73 in?

Answers

Answer:

Step-by-step explanation:

so its 15.5 plus 6.7 which equals 22.2 then you multiply 22.2 by 4.3 which is 95.46  the divide by two which gives us are awnser 47.73.

[tex]\frac{1}{2 } + (-3)[/tex]

Answers

-5\2 as a fraction hope this help
-5/12 ........... i'm really not that sure

Find the exact length of the third side.
39
36

Answers

The answer is 15 cm

39 cm, 15 cm, 36 cm

Write z = 5 + 2i as an ordered pair in an Argand diagram.

Answers

Answer:no hablo espanol

Step-by-step explanation:

Over the past 15 years, a business owner has made at most $4,000 in profits each week .Which graph represents the business owner's possible profits each week ?

Answers

Answer:

3,120,000

there are 52 weeks in a year:

52 x 15 = 780

Now multiply the salary to it:

780 x 4,000 = 3,120,000

I think this is correct

Answer:

d

Step-by-step explanation:

I got it correct so it must be correct

Ms. Reynold's sprinkler system has 5 stations that water all parts of her front and back lawn. Each station runs for an equal amount of time. If it takes 16 minutes for the first 2 stations to water, how long does it take to water all parts of her lawn?

Answers

Answer: 40 minutes

Step-by-step explanation:

It takes 16 minutes for the first 2 stations to water their sections which means that the time taken per station is:

= 16/2

= 8 minutes per station

Ms. Reynolds has 5 stations.

Total time taken will therefore be:

= 8 * 5

= 40 minutes

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.

Answers

Answer:

10 cents an ounce‍♂️‍♂️

Answer:

10 I believe but I can't remember everything because I learned this like a year ago

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