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
VikaD [51]
3 years ago
13

a store has a sale on books. The price is 17.55 for one book, 16.70 each for 2 books, 15.85 each for 3 books, and $15 each for 4

books. If the pattern continues, how much will it cost to buy 7 books?
Mathematics
2 answers:
svetoff [14.1K]3 years ago
7 0
Do miuness 5 10 15 so now muiness 2o cent for 5 6 is 25 7 is 30 so muiness 3o cents is 14 dollers and 70 cents
stiks02 [169]3 years ago
6 0
It would be $12.45,because it's going down by .85 cents so you would .85 times 3 which would equal $2.55, so you would subtract $15 by $2.55 which would equal the answer $12.45.
You might be interested in
Which of the following numbers is irrational?
love history [14]
the square root of three when multiplied by itself if the number three it is more precisely call the principal square root of three the square root of three is an irrational number approved the irrationality
6 0
3 years ago
Which of the following represents the cosine of 70 degrees
Westkost [7]
Using a calculator:  cos 70 deg = 0.342.  Note:  it sounds as tho' you were given several answer options.  Where are they?

6 0
3 years ago
Blank divided by 7 is greater than 800
mrs_skeptik [129]
15,000 divided by 7 is greater than 800 but this question could have a number of possible answers
6 0
3 years ago
Read 2 more answers
Given A = bh solve for b.
Studentka2010 [4]
A=bh A/h bh/h A/h=b The answer s b= a/h
6 0
2 years ago
Read 2 more answers
Y is directly proportional to the positive square root of x.
maxonik [38]

Answer:

y = 2

Step-by-step explanation:

from the question which says that y is directly proportional to the positive square root of x can be expressed mathematically by saying

y ∝ √x

y = k√x..................................................... where k is the constant of proportionality.

y = 12, x = 9 , k = ?

from

y = k√x

12 = k√9

12 =3k

divide both sides by the coefficient of k which is 3

12/3 = 3k/3

4 = k

therefore K = 3

now, to find the value of y when x = 1/4

from y = k√x

y = 4√1/4

y = 4 × 1/2

y = 2

therefore the value of y when x = 1/4  in this expression y = k√x  is 2

6 0
2 years ago
Other questions:
  • An alloy consists of nickel, zinc, and copper in the ratio 2:7:9.
    9·1 answer
  • Graph of a cubic polynomial that falls to the left and rises to the right with x intercepts negative 3, negative 2, and 2
    11·1 answer
  • Jack bought 8 tokens for $4.40 at this rate how many tokens can she buy with $6.05
    6·1 answer
  • Evaluate 5(14 – 23) + 8 ÷ 2. A. 26 B. 34 C. 44 D. 56
    10·2 answers
  • The final exam of a particular class makes up 40% of the final grade, and Moe is failing the class with an average (arithmetic m
    12·1 answer
  • HELP!
    10·1 answer
  • Convert 15 kilometers per hour to meters per second.
    11·1 answer
  • Plz i have no clue and this is due in 15 mins
    14·2 answers
  • Aisha runs a tutoring business. With Plan 1, students may choose to pay $20 per hour. Plan 1 is shown on
    12·1 answer
  • Use the distributive property to multiply.<br><br> 6(-7m-6)
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!