A room 24'-0" x 22'-6" requires square feet of ceiling tile and square yards of carpet. (1 square yard = 9 square feet; 3' x 3' = 9')

540 ft² ; 60 yd²

Step-by-step explanation:

1 square yard = 9 ft²

Dimension of room:

24ft 0in by 22ft 6in

1 in = 1/12 ft

6in = (1/12) * 6 ft = 0.5 feet

Hence, Dimension of room in feet ;

24ft by 22.5 ft ;

Square feet of ceiling tiles; (24 * 22.5)ft² = 540ft²

Square yards of carpet needed :

1 yd² = 9 ft²

Let yd² of carpet needed = x

1 yd² = 9 ft²

x yd² = 540 ft²

Cross multiply ;

9x = 540

x = 540 / 9

x = 60

Hence, 60yd² of carpet is needed

answer: i don't understand. what are the options

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560