Mikkiviz
Answered

The Grinch returned 520 items on Christmas morning. Some was food and the rest was presents. The number of presents he returned was 2 less than twice as much food. How many presents (x) and how much food ( y) did the Grinch return?

Sagot :

LizyLazyviz

Answer:

presents = 346 , food = 174

Step-by-step explanation:

Let x = presents

y= food

x=2y-2

y= 520-x

y = 520-(2y-2)

y= 520 - 2y +2

2y+y= 520+2

3y = 522

y= 174

x=2y-2

x= 2(174) - 2

x= 348-2

x= 346