EJERCICIOS: En cada caso, hacer la reducción de los términos semejantes. 1. 8a + 9a 2. – 8m – m 3. 6ax+1 – 8ax+1 4. – 3ax–2 – ax–2 5. 3 ab + 1 ab 6. –14xy + 32xy 5 10 7. 4ax + 5ax 8.  1 a – 3 a 2 4 9.  5 a2b – 1 6 8 10. – 7m – 8m + 9m 11. – 5ax+1 – 3ax+1 + 6ax+1 12. 3 am – 5 am 8 4

answer: city needs 2.4 inches of rainfall more to match the record of 40 inches.

step-by-step explanation:

since we have given that

total annual rainfall a city record = 40 inches

this year, total rainfall recorded = 37.6 inches

number of inches of rainfall   is needed to match the record of 40 inches is given by

hence, city needs 2.4 inches of rainfall more to match the record of 40 inches.

the answer would be 150 books

step-by-step explanation:

if you divide 300 by 2 you will get 150

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages