Question

Four times the sum of a number and 15 is at least 120. Let x represent the number. Find all possible values for x.
A. x ≥ 26
B. x ≥ –15
C. x ≥ 15
D. x ≥ –26

Answer 1

let number is x
4*x+15>=120
4x+15>=120
now solve it ..give it a try

Answer 2

@gorv you are not correct in that inequality statement.

Answer 3

"Four times the sum of a number and 15" is actually written like this: 4(x+15). And the sign is a greater than or equal to sign, not an equals sign.

Answer 4

C?

Answer 5

\[4(x+15)\ge 120\]Now try to solve for x.

Answer 6

yes, good job!

Answer 7

i skipped a

Answer 8

thanks by the way for correcting

Answer 9

4(x+15)>=120
4x+60>=120 can you continue it ?

Answer 10

so 4x>=60 divide both sides by 4

x>= 15

ok ?