Translate the sentence into an inequality.
The sum of a number times 9 and 30 is at least - 15
Use the variable c for the unknown number.

Solution:

Given that,

Translate the sentence into an inequality

The sum of a number times 9 and 30 is at least - 15

Let "c" be the unknown variable

"at least" means "greater than or equal to"

From given,

sum of a number times 9 and 30 = 9x + 30

Which means,

Thus the given sentence is translated into inequality

2500

step-by-step explanation:

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.