Find the average rate of change in public library visits from 1997 (1.4 billion) to 2001 (1.5 billion). The average rate of change was 0.025 billion per year.
Find the modes of the data set 5,6,4,4,4,3,7,3,3,7,7. If there is more than one mode, write them separated by commas. If there is no mode, click on "No mode."
Find the equation relating the total dispensing fee y and the number of refills x, where the first refill costs $12 and each additional refill costs $9. Plot the graph, identifying the slope and y-intercept.
Find the pool area given capacity 75.6m3 and depth 120cm. Tape the circular jacuzzi circumference to nearest cm. Calculate the total floor area to be tiled, and the number of tile boxes needed.
Find the surface area formula for a cylinder given its radius r and height h. Rewrite the formula in terms of diameter d and identify the relevant part to calculate the surface area of the cylinder.
Write an equation for the total number of science quizzes, y, based on the number of weeks, x, given that Leon had 4 quizzes initially and expects 1 quiz per week.
y=4+x
A music teacher needs to buy guitar strings. At Store A, 1 pack costs $6. At Store B, a bundle of 4 packs costs $20. Represent the income for each store when buying 1−20 packs. Describe the graph shapes and explain the differences. Compare the graphs to determine when it's cheaper to buy from Store B.
In a contest, correct answers earn 12 points and incorrect answers lose 5 points. School A starts with 165 points and School B with 65 points. The game ends in a tie. What is the number of correct answers for each school? Part A: The correct equation is (D) 12x−5x−165=12x+65.
Part B: The number of correct answers for each school is x.
Find the distance, to the nearest tenth of a mile, from each of two fire-lookout stations 29 miles apart to a fire, given the bearings from the stations are N35∘E and N30∘W.
There are 300 patients in the emergency room each day. 20 nurses share the patient load equally. Find the probability that a randomly chosen patient will be assigned to a specific nurse. P(N)=201
A candle maker needs wax for 42 small candles (12 oz each) and 38 large candles (18 oz each). What is the most reasonable estimate of total wax needed?
12×42+18×38=1,200 ounces
To find the degrees for the C region of the pie chart, calculate the percentage of students who got a C, then multiply by 360 degrees. Given: 123 students got a C out of a total of 59 + 84 + 123 + 84 + 62 = 412 students. The percentage of C students is 123/412 = 0.2981, which rounds to 30 degrees.
How many people are born per hour, day, and year if 150 people are born per minute? 150 people born per minute, 60 minutes per hour, 24 hours per day, 365 days per year.