You need to buy 10lb of rice. a 2lb bag costs $1.29. a 10lb bag costs $6.99. you want to buy a 10lb bag. your friend thinks buying a five 2lb bag is a better deal because the unit rate is lower. is your friend correct?

Yes your friend is correct. If you buy five bags of the 2 lb bag then you will pay $0.54 less than what you would have to pay for a 10lb bag.

Step-by-step explanation:

1.29 x 5 = 6.45

6.99 - 6.45 = 0.54

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.

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step-by-step explanation:

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