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Period 1 has 15 students in it and a test average of 86%. Period 2 has 21 students in it and an average of 88%. Period 3 has 12 students in it and an average of 95%. Use weighted means to find the overall average of the classes
General
3 months ago
Solve the equation. 3|3k| = 27A.) {-9, 9}B.) {-3, 3)C.) {-3, 9}D.) -3 < k < 3
General
3 months ago
Mr. Scott rented a bicycle for 6 hours on Saturday and then several more hours on Sunday. It cost $4 per hour to rent the bicycle, and he paid a total of $48. For how many hours did Mr. Scott rent the bicycle on Sunday? Choose two answers: one for the equation that models this situation and one for the correct answer. A. Equation: 6(4 + x) = 48 B. Equation: 4(6 + x) = 48 C. Answer: 4 hours
General
3 months ago
Sand dollars are animals that live buried in the sand of shallow coastal waters. The thin circular body of a sand dollar is usually 2 to 4 inches wide. Find the area of a sand dollar that is 3 inches wide.
General
3 months ago
A supplier sells 2 1/4 pounds of mulch for every 1 1/3 pounds of gravel. The supplier sells 173 pounds of mulch and gravel combined. How many pounds of each item does the supplier sell?
General
3 months ago
find the sum of the first 30 terms of the equation below: an=4n+1
General
3 months ago
The following question has two parts. First, answer part A. Then, answer part B. Jadyn and Leah were in a fishing tournament. Jadyn's fish weighed 2.120 kilograms. Leah's fish weighed 2.12 kilograms. Part A Jadyn says his fish weighs more because 120 is larger than 12. Is he correct? Explain your answer. Use place value to support your thinking. 1000 Part B Using the values given, create a correct comparison statement of the weights (in kilograms) using >, <, or = . Math symbols +−×÷(·)[·]=<>≠$°? Previous Next
General
3 months ago
Three friends were born in consecutive years. The some of their birth years is 5982.find the year in which each person was born
General
3 months ago
A cab company charges an initial rate of $2.50 for a ride, plus $0.40 for each mile driven. What is the equation that models the total fee for using this cab company? Write into an equation and then graph it.
General
3 months ago
A plane that carries mail makes a round trip each day from Chicago to New York. It makes 3 intermediate stops on the way to New York and 1 intermediate stops on the way back to Chicago. Suppose you make a graph on the altitude of the plane for one day, whit time on the horizontal axis and altitude on the vertical axis. How many times will the graph touch the horizontal axis?
General
3 months ago
Peter walks 3 minutes at a constant rate and travels 330 meters. If we graph this relationship with time along the x-axis and distance along the y-axis, the slope of the line representing this relationship is . If Peter walks for an hour, the point on the line that represents the distance he walks with respect to time is . NextReset
General
3 months ago
A triangle has an area of 10.5 square feet. The base of the triangle is 6 feet. What is the height?
General
3 months ago
8439 divided by 245 with remainder
General
3 months ago
WILL MARK BRAINLIEST!!Write log3 6 as a logarithm of base 2. log base 2 of 3 over log base 2 of 6 log base 2 of 6 over log base 2 of 3 log base 3 of 2 over log base 6 of 2 log base 6 of 2 over log base 3 of 2
General
3 months ago
PLEASE HELP ASAP IF U KNOW/BRAINLIEST/5 STARS AND THX! Which situation is best represented by the following equation? 2x + x = 21 A) Lilly and Paul played video games for 3x hours over the weekend. The amount of time Lilly played can be represented by x. The amount of time Paul played was 21 hours. What is x, the amount of time played by Lilly? B) Lilly and Paul played video games for a total of 21 hours over the weekend. The amount of time Lilly played can be represented by x. The amount of time Paul played is 2 times the amount Lilly played. What is x, the amount of time played by Lilly? C) Lilly and Paul played video games for a total 21 hours over the weekend. The amount of time Lilly played can be represented by x. The amount of time Paul played is 2 more hours than the amount Lilly played. What is x, the amount of time played by Lilly? D) Lilly and Paul played video games for a total of 21 hours over the weekend. The amount of time Lilly played can be represented by x. The amount of time Paul played is 1 more hour than the amount Lilly played. What is x, the amount of time played by Lilly?
General
3 months ago
The table shows the outputs, y, for different inputs, x:Input (x) 2 5 9 12Output (y) 20 15 12 8Part A: Do the data in this table represent a function? Justify your answer. (3 points)Part B: Compare the data in the table with the relation f(x) = 5x + 14. Which relation has a greater value when x = 9? (2 points)Part C: Using the relation in Part B, what is the value of x if f(x) = 64? (5 points)
General
3 months ago
Clyde Cement wants to analyze a shipment of bags of cement. He knows the weight of the bags is normally distributed so he can use the standard normal distribution. He measures the weight of 600 randomly selected bags in the shipment. Next, he calculates the mean and standard deviation of their weights. The mean is 50 lbs and the standard deviation is 1.5 lbs. What percentage of the bags of cement will weigh less than 50 lbs.? 50 60 75 80
General
3 months ago
"Please help"Consider the following question:What was the high temperature in Chicago yesterday? Which BEST describes the question?A) It is not a statistical question because the data is a single number.B) It is a statistical question because the answer can be any number. C) It is a statistical question because the answer is not known.D) It is a statistical question because the answer is a measurement.
General
3 months ago
You roll a six-sided number cube. Which events are mutually exclusive? A) rolling a multiple of 2 and a multiple of 4B) rolling a multiple of 3 and a multiple of 6 C) rolling an even number and an odd number D) rolling a prime number and an even number
General
3 months ago
Circle X with a radius of 6 units and circle Y with a radius of 2 units are shown. Which steps would prove the circles similar? Translate the circles so they share a common center point, and dilate circle Y by a scale factor of 4. Translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle Y by a scale factor of 4. Translate the circles so they share a common center point, and dilate circle Y by a scale factor of 3. Translate the circles so the center of one circle rests on the edge of the other circle, and dilate circle Y by a scale factor of 3.
General
3 months ago
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