The hardcover version of a book weighs twice as much as its paperback version. The hardcover book and the paperback together weigh 4.2 pounds. Which system of equations can be used to find h, the weight of the hardcover book, and p, the weight of the paperback?

Answers

Answer 1
Answer:

If the weight of hardcover version is double the weight of paperback version then weight of hardcover version is 2.8 pounds and the weight of paperback version is 1.4 pounds.

What is equation?

An equation is a relationship between variables in equal to form. It is evaluated to find the values of variables.

How to solve an equation?

The weight of hardcover book is h

The weight of paperback version is p.

According to question:

h=2p (weight of hardcover version is double the weight of paperback version)

h+ p= 4.2 (weight of hardcover version and weight of paperback version is equal to 4.2 pounds)

Put the value of h=2p in h+ p=4.2

2p+p=4.2

3p=4.2

p=1.4

Put the value of p=1.4 in h=2p to get the value of h

h=2p

=2*1.4

=2.8

Hence the weight of hardcover version is 2.8 pounds and the weight of paperback version is 1.4 pounds.

Learn more about equations at brainly.com/question/2972832

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Answer 2
Answer:

Answer:

D

Step-by-step explanation:

on edge 2023


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How do I find precentges of money

Answers

The same you find the percentages of numbers

Match the expressions with the property used to generate 5y + 2y + 6 + 2.

Answers

Hey there!

5y + 2y + 6 + 2

COMBINE the LIKE TERMS

= (5y + 2y) + (6 + 2)
= 7y + 8

Overall answer: 7y + 8


The QUESTION ANSWER:

Distributive property:

5y + 2(y + 3) + 2

Combining the like terms:

6y - y + 2y + 10 - 4 + 2

Commutative property:

5y + 2 + 6 + 2y

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FORMULAS: (for properties for addition)


COMBINING LIKE TERMS:

a + b + a + b

= 1a + 1b + 1a + 1b

= (1a + 1a) + (1b + 1b)

= 1a + 1a + 1b + 1b

= 2a + 2b
DISTRIBUTIVE PROPERTY:

a(b + c)

= a(b) + a(c)

= ab + ac

COMMUTATIVE PROPERTY:

a + b + c

= b + c + a

= c + b + a
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Good luck on your assignment & enjoy your day!

Good luck on your assignment & enjoy your day!


~Amphitrite1040:)


Answer:

The first one (5y + 2 + 6 +2y) is Commutative Property.

The second (6y - y + 2y + 10 - 4 + 2) is combining like-terms.

The last one is Distributive Property.

Step-by-step explanation:

What is the least common denominator of 1/3 and 5/11? 25 points

Answers

The leas common denominator is 33

12x=7y-10yis this a linear equation?what is it in standard form?

Answers

12x=3y tell me if this is wrong


9d + 2 = 56
The solution is d =

Answers

Answer:6

Step-by-step explanation:9x6=54

54+2=56

Answer:the solution is d=6

Step-by-step explanation:9*6+2=56

Write the number 3 2/5 in a/b form

Answers

Answer:

Step-by-step explanation:

16/5

5*3=15+1=16

16/5