Thursday Bellwork 04/25/2024

The coach of a high school soccer team notes the number of months for each player’s shoes to wear out and the average time the players practice each day.  Based on the data, the coach concludes that an increase in time spent practicing each day decreases the life span of the shoes.

Which statement best summarizes the coach’s conclusion?

• There is a positive correlation and causation.

• There is a negative correation and causation.

• There is a positive correlation and no causation.

• There is a negative correlation and no causation.

Marcus deposited a sum of $20,000 in his savings account. The table shows the amount in the accout after a few years.

Brad deposited a sum of $10,000 into his savings account. The table shows the amount in the accout after a few years.

In whose case is the amount increasing at a constant percent rate relative to time?

• Is increasing at a constant percent rate in Marcus' case at 5% per annum.

• Is increasing at a constant percent rate in Brad's case at 6% per annum.

• Is increasing at a constant percent rate in Marcus' case at 6% per annum.

• Is increasing at a constant percent rate in Brad's case at 5% per annum.

Breyelle is planning on purchasing a new sports-utility vehicle. The list price of the one she is most interested in buying is $32,000. This vehicle is expected to depreciate by 8.5% per year.

Which model could be used to calculate the daily depreciation for this vehicle?​ (a)  

The cost to rent a bicycle at Freewheels is $10 plus an hourly rate for each hour the bicycle is rental. The graph represents the linear relationship between the cost, in dollars, to rent a bicycle and the number of hours rented.

Based on the graph, which statement is true?

• Freewheels charges a $4 initial fee and $10 per hour.

• Freewheels charges a $10 initial fee and $4 per hour.

• Freewheels charges an $8 initial fee and $42 per hour.

• Freewheels charges a $42 initial fee and $8 per hour.