Question

For her cell phone plan, Heather pays $30 per month plus $0.05 per text. She wants to keep her bill under $60 per month. Which inequality represents the number of texts, t, Heather can send each month while staying within her budget? A)t < 600. B) t > 600. C) t < 1,800. D) t > 1,800

Answer 1

So 30+0.05t<60 is the equation so
subtract 30 from both sides
0.05t<30
multiply by 100
5t<3000
divide by 5
t<600
she can send less than 600 texts to stay below 60 dollars
so the answer is B