Question

A sugar solution currently measures 250 degrees Fahrenheit. The temperature of the solution increases 5 degrees per minute. The sugar solution will caramelize at temperatures greater than 310 and less than 338 degrees Fahrenheit. Which inequality can be used to find x, the number of minutes it will take for the solution to begin caramelizing?

310 < 250 + 5x < 338
310 < 250 + 5x < 338
310 < 5(x + 250) < 338
310 < 5(x + 250) < 338

Answer 1

2.Mrs. Sawyer estimates that a quiz will take students no fewer than 11 minutes but no more than 41 minutes to complete. She allots 1 minute for passing out the papers and instructions and then students will complete a 20-question quiz. Which compound inequality represents x, the average amount of time a student spends on each question?

1 + 20x > 11 or 1 + 20x < 41
11 < 1 + 20x < 41
11 ≤ 1 + 20x ≤ 41
1 + 20x ≥ 11 or 1 + 20x ≤ 41

Answer 2

@Babynini

Answer 3

@Blonde_Gangsta

Answer 4

i think A or C

Answer 5

for the first or second one ?

Answer 6

@Babynini

Answer 7

@Nnesha @Michele_Laino

Answer 8

@Hero

Answer 9

First question asked & answered here: https://questioncove.com/study#/updates/5f73242411f9f03fc03d5900

Answer 10

Second question:

Mrs. Sawyer estimates that a quiz will take students no fewer than 11 minutes but no more than 41 minutes to complete. ---> so 11 is included in the minimum value and 41 is included in the maximum value, so we'll be using ≤. so 11 ≤ (time it takes to complete the test) ≤ 41

to figure out the middle part of the inequality: (time it takes to pass out the test) + (# of questions)(time taken per question) gives you the amount of time the students need to finish. fill in the appropriate numbers/variables from the problem.