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

Twice the difference of a number and 4 is 3.​

Answers

Alright let’s use the variable X here for example.

2(X - 4) = 3
And that missing number is 5 1/2.
Which now equals 3.

Please help, fast! 50 points!

Answers

Answer: e?

Step-by-step explanation:

Answer:

28

Step-by-step explanation:

I need help with question b

Answers

Answer:

A triangular pyramid, otherwise known as a tetrahedron.

Step-by-step explanation:

I learned this in math class a long time ago. My major in college revolves around math and I tutor in geometry, so I memorized this type of stuff.

Glad to see that my hard work is paying off.

for what value of x is d parallel to e?
A) 20
B) 25
C) 35
D) 37

Answers

7x+3+2x-3 = 180
9x = 180
X= 20
A is the answer
I’m pretty sure It’s A
Hope this helps! Have a great day ^W*

HELP ME PLEASE!!!!!!!!!!!!!!!! You have to figure out whether its undefined or zero

Answers

It’s an undefined slope:)

Answer:

It's an undefined slope

Which is the solution to the system of equation? (3x + y= 11 y= x + 3)

Answers

Answer:

(2,5)

Step-by-step explanation:

The intersection point of 3x+y=11 and y=x+3 is (2,5) on a graph.

Find the length of the third side to the nearest tenth. a=4 b=6 c=?

Answers

Answer:

[tex]2\sqrt{13}[/tex]

Step-by-step explanation:

Find WZY. (helpp fast)

Answers

Answer:

[tex]m\angle WZY = 24^\circ[/tex]

Step-by-step explanation:

Angles and Lines

The figure shows two triangles WXZ and WYZ. Considering:

* Angles WXZ and WYZ are right (90°)

* Sides XW and YW are congruent (red marker on both)

* They share the side WZ.

We can conclude they are congruent. Thus, angles XZW and YZW are congruent or have the same measure:

5x + 4 = 6x

Subtracting 5x:

4 = x

Or, x =4

Thus:

[tex]m\angle WZY = 6x = 24^\circ[/tex]

[tex]\mathbf{m\angle WZY = 24^\circ}[/tex]

if there are 5 people per 10000 buses how many will there be

Answers

Answer:

45 x 5 = 225 so 225 students altogether on 5 buses

Step-by-step explanation:

have a good day

Answer:

50,000 people.

Step-by-step explanation:

5 people on each bus.

10,000 buses total.

5 x 10,000 = 50,000

Find the volume of the figure. Round to the nearest hundredth if needed.

Answers

Answer:

235.62 cubed yards

Step-by-step explanation:

Area of a cylinder = pi(r^2)*h

pi(5^2)*3 = 235.62

I need help please :'v​

Answers

Answer:

Slope = 2

Step-by-step explanation:

[tex]\frac{-8-8}{-6-2}=\frac{-16}{-8}=2[/tex]

Answer:

2

Step-by-step explanation:

using formula given y2-y1/x2-x18-(-8)/2-(-6)8+8/2+616/82

Select the reason why these triangles are
similar. If they are not, select "Not similar".
A. AA
B. SAS
C. SSS
D. Not similar

Answers

Answer:

B. SAS

Step-by-step explanation:

In the given diagram, it would be observed that each side of the bigger triangle are multiplied by a factor of [tex]\frac{1}{3}[/tex] to give the values of each corresponding sides of the smaller triangle. But the included angle of the two triangles are the same.

Therefore, the reason why the triangles are similar is because of side-angle-side (SAS) relations. The correct option is B.

Answer:

SAS

Step-by-step explanation:

Just Because.

What is an
equation of the line that passes through the points (-8,4) and (-8, 8)?

Answers

Answer:

X= -8

Step-by-step explanation:

2.1834 around you to the nearest hundredth​

Answers

Answer:

2.18 I think this is the answer sorry if it's not-

Answer:

2,1044 is the correct answere

6's + 2) = 18

S+2=
S=

Answers

Answer:

s+2=3

s=1

Step-by-step explanation:

make it braintliest please

You go to the mall and your mom gives you $60 to spend on back to school clothes. There is a shirt you want for $80, but it is 25% off. Will you have enough money?

Answers

Answer:

yes you will

Step-by-step explanation:

25% off of 80 is 60

Question on the picture

Answers

Answer:

[tex]\mathtt{\huge\star{\pink{\underline{ option\: D }}}}\huge\star[/tex]

It should be question D

One way to convert .9 to a percent would be to...
5 points
divide .9 by 100
multiply .9 by 100
add 100 to .9
subtract .9 by 100
6. Shawn is 22 years old. His cousin Marvin is 35% older than him. How old is Marvin?
7 points
27 years old
32 years old
25 years old
29 years old
7. Brianna went to diner for breakfast. The total bill was $38.50. The sales tax is 7%, and she decides to tip the waiter 25% of the original bill. What will be the total cost of the bill?
10 points
$50.83
$42.95
$48.72
$55.29
8. This year Monica scored a 70 on the FSA math test. Last year Monica scored a 45 on the FSA. What is the percent change in Monicas' FSA score?
7 points
62%
48%
56%
36%
Use the information below for questions 9 - 14

9. 12. If every item is discounted by 50%. What would be the total if you purchased a phone charger, tv, and a phone case? *
8 points
$93
$124
$111
$104
10. How much is a 40 inch television if the sales tax is 5.75%? *
8 points
$210.15
$211.50
$208.62
$207.98
11. If you buy a laptop bag and a phone charger, what would be the total cost if you have a 30% off discount coupon? *
8 points
$90
$80
$30
$70
12. If you decide to purchase a wireless keyboard and the tax is 9.5%. What would be the total amount of the tax?
8 points
$2.25
$3.27
$2.85
$2.46
13. Laptop bags are a new hot item!! So the owner decides to markup the price on laptop bags by 120%. What will be the new price of the laptop bags? *
8 points
$120
$108
$115
$127
14. Last year the 40 inch television was $350. What is the percent change in price for the television? *
7 points
63%
56%
28%
43%

Answers

Answer:

this doesn't make any sense but here's a pic while you wait for your answer.

Step-by-step explanation:

PLEASE ANSWER

What is a ratio?

Answers

A ratio is the quantitative relation between two amounts showing the number of times one value contains or is contained within the other.

The quantitative and relatable relation between two amounts of goods or numbers shows the number of times one value contains or is contained within the other or one number/value with respect to the other number/value.

It is basically the relationship between two similar magnitudes with respect to the number of times the first contains the second.

Lets us understand this with the help of an example that the ratio of x to y can be written as

x: y x / y

Example: the ratio of 1 to 2, written 1:2 or 1/2.

Know more about Ratio: https://brainly.com/question/12024093

What is the slope of the line graphed above?

Answers

Answer:

m=3, or in y-intercept form, y=3x-3

What is the approximate area of the circle shown below? Please help and thank you

A. 11.6 ft2
B. 172 ft2
C. 23.2 ft2
D. 43 ft2

Answers

Answer:

D

Step-by-step explanation:

A = (pi)(r)^2

A = (3.14)(3.7)^2

A= ~43

Answer:

d. 43

Step-by-step explanation:

please help me with this its my last math question will give brainly for correct answer
The sum of the digits of a two-digit number is 10. When the digits are reversed, the new number is 18 less than the original number. Find the original number. Check your answer.
The original number is 46.
The original number is 82.
The original number is 28.
The original number is 64.

Answers

Answer:

64

Step-by-step explanation:

 

The current temperature is 30°C. Over the next eight hours the temperature decreases and then increases, returning back to 30°C. if the temperature initially decrease by 13°C, how much did it subsequently increase?

Answers

Answer:

13°C

Step-by-step explanation:

The number of hours that the temperature fluctuates is irrelevant to the problem.

This problem is asking how many degrees did the temperature increase in order to go back to 30°C after being decreased by 13°C.

Find the new temperature after it decreased:

30°C - 13°C = 17°C

If the temperature after decreasing is 17°C, it needs the same amount it was decreased by to go back to 30°C.

Therefore, the temperature subsequently increased by 13°C to go back to 30°C after being decreased by 13°C.

Plz help me i need it BRAINLIEST AND GOOD RATING IMMEDIATLY


Marcus and Lily are running at the school track. The graphs below represent the distance in miles each person has run as function of time in minutes. Select all the statements that are true based on the graphs shown.

Answers

where’s the graphssss???

Derrick's Dog Sitting and Darlene's Dog Sitting are competing for new business. Derrick's Dog Sitting
charges $16 plus $7 per hour. Darlene's Dog Sitting charges $20 plus $5 per hour.
Part 1 out of 2
Complete and solve the equation that can be solved to find the number of hours for which the total cost
will be the same for the two services. In your equation, use x to represent the number of hours of dog
sitting
The equation is
The total cost will be the same for the two services at
hours.

Answers

Answer: both services will cost the same if it is for 3 hours service.

Step-by-step explanation: Hope this helps.

Define x: Let x be the number of hours

Derrick Dogs sitting:

Fixed charged=$12

Hourly change=$5

Total charge=12+5x

Darlene dog sitting:

Fixed charged=$18

Hourly change=$3

Total charge= 18+3x

Find the total number of hours so that both cost are the same:

12 + 5x = 18 + 3x

5x - 3x = 18 - 12

2x = 6

x = 3

ANSWER: both services will cost the same if it is for 3 hours service

Answer:

3 hours hon

Step-by-step explanation:

round 17.5 to the nearest 1

Answers

Answer:

18

Step-by-step explanation:

.5 is 5 4 and below round down 5 and up round up

Activity 12.1 Tax, Tip, and Discount
What percentage of the car price is the tax?
car price
tax

Answers

Answer:

25%

Step-by-step explanation:

(1/4)x100=0.25x100=25, The tax is 25%

y=3x-7y=3x−7 Complete the missing value in the solution to the equation. (1,_) PLEASE QUICK

Answers

Answer:

-4

Step-by-step explanation:

The two equations you have are:

y = 3x - 7

x = 1 (this comes from the x value being 1)

To solve for y, use the substitution property of equality to replace x in the equation:

where x = 1,

y = 3(1) - 7

y = -4

Answer:-4

Step-by-step explanation:bc khan

HELP ME PLEASE!!! Asap

Solve for the proportion 42/21 = 6/d

Answers

d = 6/42121 or d = 0.000142447

Carrie Crop Growers square garden has a side length of 12 feet. What is the area of the​ garden? What is the​ perimeter?

Answers

Answer:

Area = 144   Perimeter = 48

Step-by-step explanation:

if the garden is square and the length is 12 all you do is 12 * 12 for the area and 12+12+12+12 for the perimeter.

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