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
Valentin [98]
3 years ago
6

Your chemistry textbook has 936 pages and weighs 4.2 pounds. your calculus textbook has 1368 pages and weighs 6.0 pounds. these

books ship in cases that hold 24 books each. a shipment of 20 cases of books that weighs 2707.2 pounds arrives at the bookstore. how many cases of chemistry books are there in this shipment? report your answer to the nearest whole number.
Mathematics
1 answer:
Zarrin [17]3 years ago
4 0
Let the number of chemistry books be x and the number of calculus books be y
total number of books in each case is:
x+y=24
x=24-y.....i

Weight of each case:
2707.2/20
=135.36
thus
4.2x+6.0y=135.36..ii substituting i in ii
4.2(24-y)+6y=135.36
100.8-4.2y+6y=135.36
hence
1.8y=34.56
y=19.2
hence
x=24-19.2
x=4.8
thus the number of chemistry books was 4.8*20=96 number of calculus was
19.2*20
=384 books

You might be interested in
I AM BEGGING YALL TO HELP ME BRAINLYEST
Harrizon [31]

Answer:

56

Step-by-step explanation:

PEMDAS

4+372-320

376-320

56

3 0
2 years ago
Read 2 more answers
write an expression that can be used to find the nth term for each sequence listed below.7, 13, 19, 25, 31,.... -1,2,5,8,11,14
LenKa [72]
You'll have to use an arithmetic sequence to find the nth term. Use the equation a=6n+1
5 0
3 years ago
Describe the rotation of J
Serga [27]

Answer:

The coordinates of J' when rotating by 90° counterclockwise will be: J'(3, 1)

The coordinates of J' when rotating by 90° clockwise will be: J'(-3, -1)

Step-by-step explanation:

Square JKLM with vertices

  • J(1, -3)
  • K(5, 0)
  • L(8, -4)
  • M(4, -7)

We have to determine the answer for the image J' of the point (1, -3) when we rotate the point by 90° counterclockwise, we need to switch x and y, make y negative.

In other words, the rule to rotate a point by 90° counterclockwise.

P(x, y) → P'(-y, x)

As we are given that J(1, -3), so the coordinates of J' will be:

J(1, -3) → J'(3, 1)

Therefore, the coordinates of J' when rotating by 90° counterclockwise will be:  J'(3, 1).

When the point is rotated by 90° clockwise, we need to switch x and y, make x negative.

In other words, the rule to rotate a point by 90° clockwise.

P(x, y) → P'(y, -x)

As we are given that J(1, -3), so the coordinates of J' will be:

J(1, -3) → J'(-3, -1)

Therefore, the coordinates of J' when rotating by 90° clockwise will be:  J'(-3, -1)

3 0
3 years ago
PLESE HELP ill GIVE BRANILY<br><br> Solve for x. 3.5(7-x)+32=106-1.5(4x+18)
murzikaleks [220]

Answer:

X=9

Step-by-step explanation:

3.5(7−x)+32=106−1.5(4x+18)

Step 1: Simplify both sides of the equation.

3.5(7−x)+32=106−1.5(4x+18)

(3.5)(7)+(3.5)(−x)+32=106+(−1.5)(4x)+(−1.5)(18)(Distribute)

24.5+−3.5x+32=106+−6x+−27

(−3.5x)+(24.5+32)=(−6x)+(106+−27)(Combine Like Terms)

−3.5x+56.5=−6x+79

−3.5x+56.5=−6x+79

Step 2: Add 6x to both sides.

−3.5x+56.5+6x=−6x+79+6x

2.5x+56.5=79

Step 3: Subtract 56.5 from both sides.

2.5x+56.5−56.5=79−56.5

2.5x=22.5

Step 4: Divide both sides by 2.5.

2.5x

2.5

=

22.5

2.5

x=9

4 0
3 years ago
Read 2 more answers
The Jensen family took a trip in September. Sally is calculating the gas mileage in miles per gallon for her dads SUV. When he f
Fynjy0 [20]
U don't have enough information to answer the question because u need to know how much the gas is per gallon
3 0
3 years ago
Other questions:
  • In 2001, the value of a plot of land is $12,000. Each year, the value of the plot increases by 8%.
    15·2 answers
  • A pond is initially stocked with 1000 catfish, and the fish population is then sampled each month to estimate its size. It is de
    9·1 answer
  • The angle θ is in the first quadrant of the unit circle and tan(θ)= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B8%7D%7B15%7D" id
    14·1 answer
  • Celeste has a garden that has a length of 15x and a width of 3x+ 5 feet. Write a polynomial that represents the perimeter of the
    14·2 answers
  • Select all the correct answers.
    13·1 answer
  • What is the volume please help.
    10·1 answer
  • * Use order of operations to solve the following.
    15·2 answers
  • If we multiply a positive and a negative number, is the result positive or<br> negative?
    12·1 answer
  • PLSSS HELP THIS IS HARD ANYONE
    6·2 answers
  • How much would you save, per pound, if you buy your ground beef at SuperGrocery A, rather than SuperGrocery B?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!