Unit 7: 10 alg

suppose 10% of all redeemed coupons at a supermarket are for 50% off the item purchased.

a simulation is used to model a coupon randomly selected and then recorded as 50% off or not 50% off.

which simulation best models the scenario?

place 50 equally sized pieces of paper in a hat. of the 50, 10 read “50% off” and the rest read “not 50% off ”.

place 30 equally sized pieces of paper in a hat. of the 30, 6 read “50% off” and the rest read “not 50% off ”.

place 80 equally sized pieces of paper in a hat. of the 80, 10 read “50% off” and the rest read “not 50% off ”.

place 40 equally sized pieces of paper in a hat. of the 40, 4 read “50% off” and the rest read “not 50% off ”.

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

Quick! a survey of 57 customers was taken at a bookstore regarding the types of books purchased. the survey found that 33 customers purchased mysteries, 25 purchased science fiction, 18 purchased romance novels, 12 purchased mysteries and science fiction, 9 purchased mysteries and romance novels, 6 purchased science fiction and romance novels, and 2 purchased all three types of books. a) how many of the customers surveyed purchased only mysteries? b) how many purchased mysteries and science fiction, but not romance novels? c) how many purchased mysteries or science fiction? d) how many purchased mysteries or science fiction, but not romance novels? e) how many purchased exactly two types of books?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3