Lupita plans to type a hand-written paper before she goes to sleep. It will take her 20 minutes to gather her work and set up the computer. If she types 30 words per minute, which inequality represents how long it will take her to prepare for and complete a paper that has at least 750 words?

Thirty times (twenty minus t) is greater than or equal to seven hundred fifty

Twenty times (t minus thirty) is greater than or equal to seven hundred fifty

Twenty times (thirty minus t) is greater than or equal to seven hundred fifty

Thirty times (t minus twenty) is greater than or equal to sev

Question

Lupita plans to type a hand-written paper before she goes to sleep. It will take her 20 minutes to gather her work and set up the computer. If she types 30 words per minute, which inequality represents how long it will take her to prepare for and complete a paper that has at least 750 words?

Thirty times (twenty minus t) is greater than or equal to seven hundred fifty

Twenty times (t minus thirty) is greater than or equal to seven hundred fifty

Twenty times (thirty minus t) is greater than or equal to seven hundred fifty

Thirty times (t minus twenty) is greater than or equal to sev

anonymous · Answer

time >= 750/30 + 20

time is greater than or equal to what it takes to write 750 words + 20 minutes
it takes 750words/30 wpm to write the essay itself, in minutes

then they re-arrange:
time - 20 > = 750/30

(time - 20)*30 >= 750
Thirty times (t minus twenty) is greater than or equal to sev