A grill at a restaurant will be used to cook racks of ribs that are 1 lb. each and briskets that are 5 lb. each. No more than 130 lb. of ribs and brisket will be cooked on the grill.
Which inequality represents all possible combinations of x, the number of racks of ribs that will be cooked on the grill and y, the number of briskets that will be cooked on the grill?

Step-by-step explanation:

A grill at a restaurant will be used to cook racks of ribs that are 1 lb. each and briskets that are 5 lb.

Let the number of rack of ribs be x and grill be y

No more than 130 lb. of ribs and brisket will be cooked on the grill.

The maximum briskets must be less than or equal to 130

Such that the equation representing them be,

1x + 5y ≤ 130

Possible combinations of  y be 1,2,3

when y =1, x + 5 ≤ 130, x = 125

when y = 2, x + 10 ≤ 130, x = 120

when y = 3, x + 15 ≤ 130, x = 115 and so on..

x = -4

step-by-step explanation:

- 20 - 4(x + 3) = 4x

=> -20 - 4x - 12 = 4x

=> - 32 -4x = 4x

=> -32 = 4x + 4x

=> - 32 = 8x

=> -32/8 = x

=> -4 = x