A textbook store sold a combined total of 280 history and math textbooks in a week. The number of history textbooks sold was three times the number of math textbooks sold. How many textbooks of each type were sold

Answers

Answer 1

The number of maths books sold is 70 and the number of history books sold is 210.

Let no of maths book sold be x.

According to the question, the number of history books sold is three times the number of maths books sold.

Therefore the number of history books sold is 3x.

Given: Total books sold = 280

So, x + 3x = 280

Solving the equation, we get:

4x = 280

x = [tex]\frac{280}{4}[/tex]

x = 70 (Number of maths books sold)

3x = 3 × 70 = 210 (Number of history books sold)

Thus the number of maths books sold is 70 and the number of history books sold is 210.

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Related Questions

Sandra has a $20 itunes gift card and spends $3 each month. Which of the following functions models how much money Sandra has on her gift card after x months?

Answers

Answer:

x3-20

Step-by-step explanation:

x stands for the month 3 is the money that she is spending each month if you multiply those together you get the amount of money she has spent over x amount of months minus the 20 dollars on her gift card

Find the circumference of each circle. Use 3.14

for π. Round to the nearest tenth if necessary.

Answers

Answer:

Step-by-step explanation:

42(3.14)=131.9(nearest tenth)

Which could be the value of x in the
triangle below?

Answers

Answer:

6

Step-by-step explanation:

I'm going to assume that this is a right triangle

which means that

3x²+6²=19²

9x²+36=361

9x²=325

3x=18.0277

x=6

Which fraction has a repeating decimal as its decimal expansion?
3/25
3/16
3/11
3/8

Answers

It should be 3/11 because we know that 11 is a number where if almost any number divide 11 is a repeating.

Las medidas interiores de una piscina portátil cilíndrica son 0.85 m de radio y 0.60 m de altura.
¿Cuántos litros de agua le caben?

Answers

Answer:

es ovio

Step-by-step explanation:

investiga xd xd xd

I’m not sure how to answer this pls help

6.1 x 1.9 + 3.7

Answers


The answer is 15.39.

Answer: 15.29

Step-by-step explanation: Simplify

i ready classroom grade 8 volume 1 mathematics

Can anyone help me with this asap !!!

Answers

Answer:

COCO is life

Step-by-step explanation:

COCO is = to food and water

And food of COCO contains 2grams

Water of COCO contains 10 liters

So add grams and liters together

And u get this

10l/41ⁿ9xg451/⅞41 + we12/need/34¹⅔/coco

=coco 10274728l

What's the probability you will flip 3 coins in a row and they all land on HEADS?
A. 3 out of 6 chance
B. 1/8 chance
C. 2 in 16 chance
D. 4 in 5 chance

Answers

Answer:

B. 1/8 chance

Step-by-step explanation:

Every time you flip a coin you have a 1/2 probability of landing on heads.

If you repeated the process three times in the row

It would be 1/2 x 1/2 x 1/2 = 1/8

The odds they all land on heads is 1/8

Which graph represents this system?
Y=3
X+ y = 4


Answers

Answer:

Step-by-step explanation:

please help!!!!!!!!!!!!​

Answers

Step-by-step explanation:

1 3/4 × 4/7 = 1

вот правильный ответ я проверяла )

Answer:

4/7

Step-by-step explanation:

13/4.x=1

7/4x=1

x=4/7

1/4(16w+5) we need to simplify the answer

Answers

Answer:

4w + 5 / 4

Step-by-step explanation:

1/4 × 16w + 1/4 × 5

= 4w + 5 / 4

Which expression is equivalent to 3 (x – 9) + 6?
A. 3x - 3
B. 3x - 21
C. 15 - 3x
D. 33 - 3x

Answers

It’s B, the answer is 3x-21

Three-quarters of the students that Maria surveyed stated that they liked to sleep in on Saturday morning. If 24 of the students said they liked to sleep in, how many students did Maria survey?

Answers

Answer:

6

Step-by-step explanation:

A fish tank has 45 gallons of water in it. If it is 90% full, what is the full capacity of the fish tank? The fish tank can hold gallons of water when full to capacity.​

Answers

the answer is 50 gallons because 45 gallons is 90% of 50 gallons

Answer:

My answer is 55 or 60  which would be 100%

Step-by-step explanation:

What is the area of the following polygon? Explain your process for how you arrived at the final area. Show your work.

Answers

Answer: 400

Step-by-step explanation: first you have to know the triangle area, which is 20 times 10 divided into 2, then you have to know the square area which is 20 times 15 and finally you will put together the areas, which is 400

Answer:

Step-by-step explanation:

Answer: 400

Step-by-step explanation: first you have to know the triangle area, which is 20 times 10 divided into 2, then you have to know the square area which is 20 times 15 and finally you will put together the areas, which is 400

At cycle and sport, customers can rents bikes, electric scooters, kayaks, canoes, or paddle boards by the hour. Mr Thompson is renting a kayak and a paddle board for his family. He has a coupon for $10 off. Which expression represents the total cost for Mr. Thompson to rent a kayak for k hours and a paddle board for p hours..

Answers

Answer: its 18k+22p-10!

Step-by-step explanation:

I did the test got it correct, PLS MARK BRAINLIST

Hence, the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

What is the equation?

The definition of an equation is a mathematical statement that shows that two mathematical expressions are equal.

Here given that,

At cycle and sport, customers can rents bikes, electric scooters, kayaks, canoes, or paddle boards by the hour. Mr Thompson is renting a kayak and a paddle board for his family. He has a coupon for $[tex]10[/tex] off.

So,the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

Hence, the total cost for Mr. Thompson to rent a kayak for [tex]k[/tex] hours and a paddle board for [tex]p[/tex] hours is [tex]18k+22p-10![/tex].

To know more about the equation

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Select the correct answer from each drop-down menu.
The corresponding sides of two similar triangles are
The corresponding angles of two similar triangles are
Reset
Next

Answers

Answer:

1)proportional

2)Congruent

Step-by-step explanation:

The corresponding sides of two similar triangles are in equal proportion.

The corresponding angles of two similar triangles are congruent.

What are similar triangles?

The two triangles said to be similar if the corresponding sides of two similar triangles are in equal proportion and the corresponding angles of two similar triangles are congruent.

Given that. we need to find the correct answer from each statement.

According to the definition of the similar triangles,

two triangles said to be similar if the corresponding sides of two similar triangles are in equal proportion and the corresponding angles of two similar triangles are congruent.

Hence, the correct statements are:

The corresponding sides of two similar triangles are in equal proportion.

The corresponding angles of two similar triangles are congruent.

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whats the anwser for 14−3x<−1

Answers

Answer:

Step-by-step explanation:

Here you go mate

Step 1

14−3x<−1  Question

Step 2

14−3x<−1  Simplify

Step 3

14−3x<−1   Subtract 14 from sides

-3x<-15

Step 4

-3x<-15  Divide sides by -3

x>5

Answer

x>5

Hope this helped

Answer:

Step-by-step explanation:

I can help

Step 1

14−3x<−1  Simplify

Step 2

14−3x<−1  subtract 14 from the sides

-3x<-15

Step 3

-3x<-15  Divide the sides by 3

-3x/-3<-15/-3

Answer

x>5

Hope this helps

A triangular prism where the base is a right traingle with lengths of the edge are given 3cm,4cm,5cm,3cm what are the total surface

Answers

Answer:

Total surface area is 48 square Centimeter

Step-by-step explanation:

Total surface area is equal to the product of triangular base area and the height of the prism

Area calculation of triangular base

[tex]S = \frac{3+4+5}{2} = 6\\[/tex]

Area =

[tex]\sqrt{S(S-a)(S-b)(S-c)}[/tex]

Substituting the given values in above equation we get

[tex]\sqrt{6 *3*2*1} = 6[/tex] square centimeter

Total surface area

= [tex]2 * 6 + (3*3)+(3*4)+(3*5)\\= 12 + 9 + 12+ 15\\= 48[/tex] square Centimeter

(c) At an auction, a table was bought for £56.
This was 20% below the table's actual value.
What was the table's actual value?

Answers

£70
if 100%= ?
80%=56

100/80=1.25
1.25 x 56
=70

Patty, Helene, and Mira share $0.96 that they found in an old wallet. How much money does each girl get?

Answers

Answer:

33 cents

Step-by-step explanation:

.96 divided by 3 = .36

Part B: Melissa designed the kite shown and would like to know the minimum amount of fabric needed to cover the kite. Each unit is 1 inch,

48 in

69 in

286 in

572 in?

Answers

Answer:

69.4 inches

Step-by-step explanation:

A kite is a quadrilateral (has four sides and four angles) with two pairs of congruent adjacent sides. The diagonals of a kite are perpendicular to each other.

To prove that quadrilateral ADBC is a kite, the diagonals of the kite have to be perpendicular to each other.

AD ⊥ BC.

Since adjacent sides are equal to each other, hence:

BC = BD, AC = AD

The coordinate of the vertices are A(11, 0), B(11, 26), C(0, 18) and D(22, 18)

[tex]BC=\sqrt{(0-11)^2+(18-26)^2} =13.6\ unit\\\\AC=\sqrt{(0-11)^2+(18-0)^2} =21.1\ unit[/tex]

BC = BD, AC = AD

Perimeter of kite = BC + BD + AC + AD = 2BC + 2AC = 2(13.6) + 2(21.1) = 69.4 units = 69.4 inches

Answer: 69

Step-by-step explanation:

ALGEBRA 2:

my brain can’t handle this please i’m begging 35 points!! + brain lies

Answers

Answer:

Batoon you okay U-Pack guitar a Jeffrey vaginas how much are I guess you're everything

The a part is figure 1, but in b I’m not sure if is 6.30 or 143.44, I just hope this help u.

The average 12-ounce container of raspberries contains 120 raspberries. Since the size of the raspberries can vary, the actual quantity of raspberries in a container can range anywhere from 4 berries below average to 4 berries above average.

Write and solve an absolute value equation to calculate the minimum and maximum raspberry quantities in a 12-ounce container.

Enter your answers in the boxes below.

Minimum Quantity:
raspberries

Maximum Quantity:
raspberries

Answers

Ik someone else already answerd but here is confirmation just incase :)

plz help!!! i’ll mark brainliest!!!!

Answers

Step-by-step explanation:

go to rcboe.org sorry if it doesn't work

The price of a television is $567.31. The state sales tax rate is 8.3%.

What is the total cost of the television?

Answers

8.3%= 0.083

567.31 * .083 = 47.086 = 47.09

567.31+47.09= $614.40

Total cost is $614.40

Answer:

[tex]2.64957x10 [/tex]

[tex]8547 \times 31[/tex]

[tex] = 264951[/tex]

Help this is timed!!!

Answers

Answer:

C. (4,2)

Step-by-step explanation:

The point where the lines intersect is (4, 2)

Answer:

IT IS 2,4!!!!!!!!!1

Step-by-step explanation:

Solve for x, Round to the nearest 100th if needed.
x13+18=49
x=?

Answers

Step-by-step explanation:

X=49-18/13

X=31/13

X=2.38

so nearest 100 th would be 2.4

Jason wants to create a box with the same volume as the one shown below. He wants the length to be 4inches. What would be the measurements of the width and height?

Answers

Sorry, need either a photo of the box or the measurements


John earns $7.50 per hour at his job. Becky's earnings are given by the equation P = 8.25x, where P is her
total earnings, in dollars, and x is the number of hours worked. If they each work 9 hours, who earns more
and how much more

Answers

in 9 hours
john earns $67.5
becky earns $74.25
becky earns $6.75 more than john
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