Tomorrow, mrs. wendel's class will be using toothpicks for a science project.  each student must use at least 9 toothpicks for the project.  mrs. wendel knows that there is already a bag of 50 toothpicks in the class storage room.  she plans to buy  x  additional toothpicks this afternoon to make sure her class will have enough. if her class has  30 students, which number sentence represents this situation?

Number of toothpicks required per student = At least 9

Total number of students = 30

Number of toothpicks required for the entire class = At least 9 × 30 = At least 270

Number of toothpicks in the bag in the class storage room = 50

Additional number of toothpicks required to be bought to make sure there are enough toothpicks = 270 - 50 = 220

Hence, she needs to buy 220 toothpicks.

Step-by-step explanation:

We have been given that Each student must use at least 9 toothpicks for the project. Her class has 30 students.

First of all, we will find the total number of toothpicks needed for 30 students by multiplying 30 by 9 that is .

Mrs. Wendel knows that there is already a bag of 50 toothpicks in the class storage room. She plans to buy x additional toothpicks this afternoon to make sure her class will have enough.

So the total number of toothpicks that Mrs. Wendel has would be .

The number of total amount of sticks Mrs. Wendel has, should be greater than or equal to 270.

Therefore, our required inequality would be .

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!

step-by-step explanation:

if you want to separate 54 into 6 individual tiers then you need to divide if you want to separate 54 into 6 individual tiers then you need to divide 6 and 54.

if you divide 9 by 6 you will get 54.

- hope i .