Answer:
0.05x + 0.10y ≤ 1
Step-by-step explanation:
At a hardware store a bag holds upto 1 pounds of nails.
Each peny nails (x) weigh 0.05 pounds.
and wood nail (y) weigh 0.10 pounds
So total weight of penny nails and wood nails
= (0.05x + 0.10y)
This weight should be less than 1 pound bag.
So inequality formed will be 0.05x + 0.10y ≤ 1
Square root =
remember :
x² = ± a
x = ña
.
x = ñ25
x = ±5
• x = 5 and -5