A worker is combining two chemicals used in a photography lab. Chemical R costs $0.17 per gram. Chemical T costs $0.32 per gram. The worker must make a batch of the two chemicals that costs less than $24.00. Which inequality models the situation, where is the number of grams of chemical R and is the number of grams of chemical T?

A. 0.17 r + 0.32 t < 24

B. 0.32 r + 0.17 t < 24

C. 0.17 r + 0.32 t > 24

D. 0.32 r + 0.17 t > 24

24

step-by-step explanation:

i assuming that 2 sides are 6 the other 2 sides are 4 cm so 6 times 4 is 24 : )

16

step-by-step explanation:

2 x 40 = 80

80/5

= 16

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.