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
Mars2501 [29]
2 years ago
12

On the last day of the school book fair, all pencils were one set price and all books were a different set price. Sammy bought 2

pencils and 6 books for $14. Belle bought 4 pencils and 1 book for $8. What was the set price for a pencil? What was the set price for a book?
Mathematics
1 answer:
Lady bird [3.3K]2 years ago
3 0

Answer:

  • Book -$20/11 and pencil - $17/11

Step-by-step explanation:

Let the set price of pencil be p and the set price of book be b

<u>Then we have equations:</u>

  • 2p + 6b = 14
  • 4p + 1b = 8

<u>Simplify the first equation:</u>

  • p + 3b = 7

<u>And substitute p in the second equation: p = 7 - 3b</u>

  • 4(7 - 3b) + b = 8
  • 28 - 12b + b = 8
  • 11b = 20
  • b = 20/11

<u>And finding value of p:</u>

  • p = 7 - 3(20/11) = 1/11(77 - 60) = 17/11
You might be interested in
state the coordinate of the image of the given point B (-10, -6) under a dilation with a center at the orgin with the given scal
JulijaS [17]

Answer:

何

Step-by-step explanation:

5 0
2 years ago
In the figure, if the measure of 21 = 112°, what's the measure of 212?
Usimov [2.4K]

48°

Alternate interior angles.

3 0
2 years ago
Read 2 more answers
Six friends order lunch. Which expression shows the total cost if each person orders one sandwich and one cookie?
geniusboy [140]

Answer:

6(4.75+x)

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
A baseball player hits a pitched ball when it is 4 ft above the ground. The initial upward velocity is 80 ft/s. How
iren [92.7K]

Answer:

t=+4.06

Step-by-step explanation:

when the baseball hits the ground, the height will be 0.

h=0we are given that h=−16t2+64t+4.

this means that the height is 0 when −16t2+64t+4=0.−16t2+64t+4=0divide both sides by 4:−4t2+16t+1=04=0−4t2+16t+1=0 can be solved using the quadratic formula:t=−b±√b2−4ac2a, where at2+bt+c=0.at2+bt+c=−4t2+16t+1a=−4,b=16,c=1t=−b+√b2−4ac2aor−b−√b2−4ac2a−b+√b2−4ac2a=−16+√272−8=−0.06..−b−√b2−4ac2a=−16−√272−8=4.06 (3s.f.)we have 2 values for t:−0.06 and 4.06.

since time cannot be negative, only the positive value can be taken.

this is 4.06, to 3 significant figures.the time taken is 4.06 seconds.

7 0
1 year ago
Based on the graph below, which point is a solution?
Butoxors [25]

Answer:

A.(5,1) to

Step-by-step explanation:

because the y axis is on a 5 and the x axis doesn't have a question ❓⁉️ so you have (A) to be your answer

4 0
2 years ago
Other questions:
  • The ink page yield for a printer cartridge indicates how many pages a cartridge should print. A cartridge rated at 450 pages is
    7·1 answer
  • What's a rule that could be used to simply the square of any square root of a number?
    15·1 answer
  • Please help me someone?
    10·1 answer
  • Priya has a recipe for banana bread. She uses 24½ cup of flour to make 7 loaf of bread. Andre will follow the same recipe. He wi
    15·1 answer
  • Broccoli costs $ 1.50 per pound at a grocery store. How much money does 64 ounces of broccoli cost, before tax?
    11·2 answers
  • A boiler has five identical relief valves. The probability that any particular valve will open on demand is 0.92. Assume indepen
    7·1 answer
  • kay Kay walks upstairs to make her legs stronger. Every day at work, she walks up 9 flights of stairs. If there are 13 steps in
    12·2 answers
  • What is it please????
    7·1 answer
  • Show algebraically that f and g are inverse functions:<br> g = sqrt(x+8)-4<br> f=x^2+8x+8
    9·2 answers
  • Solve the attached question.<br><br>No spam allowed!​
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!