Tk9757906idn
Answered

IDNLearn.com is committed to providing high-quality answers to your questions. Ask anything and receive prompt, well-informed answers from our community of experienced experts.

3 books and 2 pens cost $8.
5 books and 3 pens cost $13.
find the total cost of one book and one pen.
​

Sagot :

Leora03idn

Answer:

$3

Step-by-step explanation:

Let the cost of a book and a pen be $b and $p respectively.

3b +2p= 8 -----(1)

5b +3p= 13 -----(2)

(1) ×3:

9b +6p= 24 -----(3)

(2) ×2:

10b +6p= 26 -----(4)

(4) -(3):

10b +6p -(9b +6p)= 26 -24

Expand:

10b +6p -9b -6p= 2

b= 2

Substitute b= 2 into (1):

3(2) +2p=8

6 +2p= 8

2p= 8 -6

2p= 2

p= 2 ÷2

p= 1

Total cost of one book and one pen

= $b +$p

= $2 +$1

= $3

Answer:

You can solve all those problems posted can solve by this method

Step-by-step explanation:

mark me as brainliest ❤️

View image Аноним
Thank you for being part of this discussion. Keep exploring, asking questions, and sharing your insights with the community. Together, we can find the best solutions. Find clear answers at IDNLearn.com. Thanks for stopping by, and come back for more reliable solutions.