The equation y = 1.9 x can be used to determine the total weight in pounds, y, of the number of paperback books in the first printing of Zamir’s novel, x. The equation was used to fill in the table below.

Weight of Books
Number of Books

Total Weight (in pounds)
100

190
150

200

380
250

475

What value is missing from the table?

lbs.

Kathy spent 5/8 of her money on books and another 1/6 of her money on stationeries.what fraction of kathy’s money was left?

In trapezoid abcd, ac is a diagonal and ∠abc≅∠acd. find ac if the lengths of the bases bc and ad are 12m and 27m respectively.

An office supply company conducted a survey before marketing a new paper shredder designed for home use. in the survey, 80 % of the people who tried the shredder were satisfied with it. because of this high satisfaction rate, the company decided to market the new shredder. assume that 80 % of all people are satisfied with this shredder. during a certain month, 100 customers bought this shredder. find the probability that of these 100 customers, the number who are satisfied is 69 or fewer.