The sum of a number y and 9 is at least -1 .

Answer 1

Great question!

First, we'll need to set up an expression:

1. "The sum of a number y and 9" refers to addition so we'll write this as "y + 9"

Then, because it says "at least -1", we know y + 9 could = -1, but it could also be greater. This means we'll write this as an inequality!

y + 9 ≥ -1

If you wanted to then solve this, we would subtract 9 from both sides to get:

y ≥ -10

meaning that y is any number greater than or equal to -10

Hope this helps!

Answer 2

you can translate this phrase into a mathematical inequality:

"the sum of a number y and 9 is at least -1" means y + 9 ≥ -1

if you wanted to take it one step further you could isolate the y variable to solve the inequality by subtracting 9 from both sides

y + 9 ≥ -1

y ≥ -10

meaning that any number "y" that is -10 or greater will satisfy the condition