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
Crank
3 years ago
15

Amy had $28 dollar’s to spend on school supplies. After buying 7 pens, she had $20.30 left. How much did each pen cost including

tax?
Mathematics
2 answers:
oksian1 [2.3K]3 years ago
6 0

Answer:

$1.10

Step-by-step explanation:

$28-$20.30=$7.70

7.70 divided by 7= 1.10

so each pen must cost $1.10

Airida [17]3 years ago
5 0

Answer:

Step-by-step explanation:

If Amy started with 28 dollars and bought 7 pens, then had 20.30 dollars, we can subtract to find the price of all 7 pens.

28-20.30=7.70 dollars

now to find the amount for EACH pen, we divide by 7

7.70/7=1.1

each pen costed Amy 1 dollar and 10 cents with tax

You might be interested in
Profit, P(x), is the difference between revenue, R(x), and cost, C(x), so P(x) = R(x) - C(x). Which expression represents P(x),
harkovskaia [24]

Answer:

x^4-3x^3+x^2-4

Step-by-step explanation:

Given the following functions

R(x) = 2x^4 – 3x^3 + 2x – 1 and

C(x) = x^4 – x^2 + 2x + 3

We are to find the profit function P(x)

P(x) = R(x) - C(x)

P(x) = 2x^4 – 3x^3 + 2x – 1 - ( x^4 – x^2 + 2x + 3)

P(x) = 2x^4 – 3x^3 + 2x – 1 - x^4 + x^2 - 2x - 3

Collect the like terms

P(x) = 2x^4-x^4-3x^3+x^2+2x-2x-1-3

P(x) = x^4-3x^3+x^2+0-4

P(x) = x^4-3x^3+x^2-4

Hence the required profit function P(x) is x^4-3x^3+x^2-4

5 0
3 years ago
Read 2 more answers
The present age of murray mother is 10 years more twice his present age.After 5years,the sum of their ages will be 59 years.How
Papessa [141]
I believe Murray is 22 end his mother 44
59-15=44
44÷2=22
3 0
3 years ago
I need help please help
denpristay [2]

im pretty sure it is c

6 0
3 years ago
Read 2 more answers
What is the likelihood of rolling a 2 or 3 on a standard number die? (Use: impossible, unlikely, equal, likely, certain)
mezya [45]
It is going to me equal
8 0
3 years ago
Help please: pre- calc
ivanzaharov [21]
Subtract g(x) from f(x): (x²+3x-1)-(x³+4x²+1)=-x³-3x²+3x-2
C is the correct answer.
4 0
3 years ago
Other questions:
  • Which expression is equivalent to square root of 9x^2?
    8·2 answers
  • Please answer it 20 points.
    7·1 answer
  • What is the solution to this system of equations?
    10·1 answer
  • How do i find this answer....
    11·1 answer
  • Ellen drew a horizontal line 3 units below the x-axis. Which two points lie on Ellen’s line?
    5·2 answers
  • A square has a perimeter of 28 centimeters.<br> What is the square's area, in square centimeters?
    13·1 answer
  • A cylinder with a radius of 1 cm and a height of 21 cm has the same volume as a cone with a height of 7 cm. What is the radius o
    15·2 answers
  • What is the simplest form of the quotient 4 square root 810 over 4 square root 2
    5·1 answer
  • A 2,100 square foot home in Cheyenne Wyoming costs 110 per square feet how much does this home costs
    8·1 answer
  • Write 10 by the power of 4 as a numeral
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!