1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
nasty-shy [4]
3 years ago
13

2) An $80 text book was on sale for $49.60 at the used book store. By what percent did the book decrease in price?​

Mathematics
2 answers:
finlep [7]3 years ago
8 0

Answer: 38%

Step-by-step explanation:

80x0.62=49.60

boyakko [2]3 years ago
4 0

The answer fam is......... 38%

You might be interested in
The sum of the angle measures of a polygon with s sides is 2340. find s.​
marta [7]

Answer:

s = 15.

Step-by-step explanation:

The formula for a polygon with s sides is:

Sum of the angles = 180(s - 2) so we have:

180(s - 2) = 2340

180s - 360 = 2340

180s = 2700

s = 15

8 0
3 years ago
The angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum o
Airida [17]

Step-by-step explanation:

It is given that the angels of a triangle have a sum of 180°. The angles of a rectangle have a sum of 360°. The angels of a pentagon have a sum of 540.

<u>Let me define the each terms.</u>

1. We know that each angle in a triangle is 60°, So there is a three angle in a regular triangle.

  • 60° + 60° + 60°
  • 180°

2. We know that each angle in a rectangle, is 90°, So there is a four angle in a regular rectangle.

  • 90° + 90°+90°+90°
  • 360°

Similarly,

  • There is 8 angle in a regular octagon and each angle measurement is 135°.

So, sum of the angles of an octagon = 135° × 8

Sum of the angles of an octagon = 1080°

Therefore, the required sum of the angles of an octagon is 1080°

6 0
3 years ago
Solve this problem please<br>​
zhannawk [14.2K]

Answer:

Check pdf

Step-by-step explanation:

Download pdf
3 0
3 years ago
There is a bag filled with 3 blue and 4 red marbles. A marble is taken at random from the bag, the colour is noted and then it i
Morgarella [4.7K]

altogether there are 7 marbles in the bag.

put the marbles in fractions, so blue would be 3/7

and red would be 4/7. but becuase you need 2 of the same, you do

3/7 x 3/7 = 9/49

4/7 x 4/7 = 16/49

then add them togther

25/49

if you need it as a percentage, it is

51.020408163265%

8 0
3 years ago
Express 80 as a product of its prime factors, write the prime numbers in accending order
Alex73 [517]

Answer:

80 as a product of prime numbers can be expressed as 2×2×2×2×5

4 0
2 years ago
Other questions:
  • Pictures attached.
    10·1 answer
  • If the sum of six consecutive even integers is 306, what is the smallest of the six integers
    9·1 answer
  • Give an example of why division is not commutative.
    6·1 answer
  • 3y to the power of 2 +6y+2y
    8·1 answer
  • Angle R and Angle T are complementary. If m of Angle R = 3x and m of Angle T = 2x, what is the value of x?
    9·2 answers
  • Graph y = 4x + 2 where is it grqphed at
    13·1 answer
  • Does anyone know what topic this is ?
    10·1 answer
  • 7th-grade math help me, please :(
    13·2 answers
  • Mariah owed her grandfather 52.25 but was recently able to pay him back $1.50. How much does Mariah currently
    6·2 answers
  • Which
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!