Register
Si compro 7 cuadernos y 3 lapiceros  gasto $ 44 Pero si compro 7 lapiceros y 3 cuadernos gasto $ 36 ¿Cuánto cuesta 1 lapicero y 1 cuaderno?
234k views
2 votes
Si compro 7 cuadernos y 3 lapiceros  gasto $ 44 Pero si compro 7 lapiceros y 3 cuadernos gasto $ 36 ¿Cuánto cuesta 1 lapicero y 1 cuaderno?

User Skydv
by
7.8k points

2 Answers

6 votes
Un cuaderno = $5

Un lapicero = $3

7 cuadernos × $5 = $35
3 lapiceros × $3 = $9
$35+$9=$44

7 lapiceros × $3 = $21
3 cuadernos × $5 = $15
$21+$15=$36
User Androvich
by
7.3k points
3 votes
sea x el numero de cuadernos & y el numero des lapiceros:

Entonces traducir el Español al lenguaje de matamaticas:

7x+3y=44
3x + 7y =36

Y encontrarás x=$5 & y=$3

User Sabbahillel
by
8.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
i have a field 60m long and 110 wide going to be paved i ordered 660000000cm cubed of cement  how thick must the cement be to cover field
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Link Copied!