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
Basile [38]
3 years ago
5

at a library book sale, hardcover books sell for $4 and paperbacks sell for $2. The expresstion 4b+2b represents the total cost

for b hardcover books and b paperbacks. Write a simpler expression that is equivalent to 4b+2b
Mathematics
2 answers:
Aleonysh [2.5K]3 years ago
7 0

Answer:

6b is a simpler expression that is equivalent to 4b+2b.

Step-by-step explanation:

 Given : At a library book sale, hardcover books sell for $4 and paperbacks sell for $2.

  The expression 4b+2b represents the total cost for b hardcover books and b paperbacks.

We have to write a simpler expression that is equivalent to 4b+2b.

Equivalent expression are expression which are different in seeing but when we solve both we get the values same  as the original expression.

Given expression is 4b+2b,

We can take 2b common from terms to get an equivalent expression as,

4b+2b = 2b(2+1) = 2b(3) = 6b.

Thus, 6b is a simpler expression that is equivalent to 4b+2b.

Damm [24]3 years ago
4 0

Answer : 6b

Step-by-step explanation: b (4+2)

You might be interested in
Please help me with this please and thank you
Bond [772]
I can’t see the problem very well, but your answer should be the one with (-3/2,0) as the intersecting point on the graph.
5 0
2 years ago
What is the length of missing side JK? Round Answer to nearest tenth please.
zvonat [6]

Given:

Triangle LJK.

LJ = 89 in, LK = 28 in and m∠L = 42°

To find:

The length of missing side JK.

Solution:

LJ = k = 89

LK = j = 28

JK = l = ?

Using law of cosine:

l^{2}=j^{2}+k^{2}-2 jk \cdot \cos L

Substitute the given values.

l^{2}=28^{2}+89^{2}-2 \cdot 28 \cdot 89 \cdot \cos 42^\circ

l^{2}=784+7921-4984 \cdot (0.7)

l^{2}=784+7921-4984 \cdot (0.7431)

l^{2}=784+7921-3703.6

l^{2}=5001.4

Taking square root on both sides.

l=70.7

The length of the missing side is 70.7 in.

4 0
4 years ago
What is the result of subtracting the second equation from the first?
FrozenT [24]

Answer: well this is hard

Step-by-step explanation:

First of all you’re adding 7Y and you’re getting -8 and for subtracting you subtract 5why and you’re getting negative one so technically you’re getting different answers?

8 0
3 years ago
4 of 4
Vlada [557]

Answer:

£30

Step-by-step explanation:

Let Brian initially had money in his wallet = £x

and Colin had the money = £y

Since ratio of money in Brian's wallet to Colin's wallet was 5 : 1

Therefore,  

⇒ x = 5y -------(1)

Brian spent £27 that day, so money left with him = £(x - 27)

After spending the money Brian had £3 less than Colin.

(x - 27) = (y - 3)

x = y + 27 - 3

x = y + 24 -------(2)

Now we equate the equations (1) and (2) for the value of x,

5y = y + 24

5y - y = 24

4y = 24

y = £6

From equation (2),

x = 6 + 24

x = £30

Therefore, Brian initially had £30.

i hope this helps

3 0
3 years ago
Owen is reading a science fiction book is 558 pages long if he reads 28Pages each day How many days will it take him to read the
hichkok12 [17]

Answer:

20 days

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • in each of two right triangles one angle measure is two times another angle measure. are the triangles similar? explain your rea
    12·1 answer
  • Y= -8 <br> y= -2x - 12 by substitution method
    7·1 answer
  • 50 points
    13·1 answer
  • Given the system of equations, what is the solution?
    7·1 answer
  • What do plants need to survive?
    12·2 answers
  • I need help with 34 it’s exponents
    10·2 answers
  • I dont know how to write the question or answers​
    7·1 answer
  • Find the percent change from 30 to 6
    9·1 answer
  • Why is 31<br> less than 3 x 10?
    11·2 answers
  • Kinda need help with 2 questions there short questions. Anyone....help
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!