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aalyn [17]
3 years ago
12

If a pine tree grows 4 inches per year, how long will it take for the tree to reach a height of 9 feet?

Mathematics
2 answers:
neonofarm [45]3 years ago
4 0

Answer:

Step-by-step explanation:

Elenna [48]3 years ago
3 0
The answer is 27. I figured that out by multiplying 9x12 so that I could convert nine feet to inches. That equaled 108. After that, I divided that by 4 to see how much years it would take and it was 27 years.
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15+[-8 (-4)] how do I work this problem..
Juliette [100K]
Multiply -8 by -4, then add fifteen! Your answer will be 47!
6 0
3 years ago
What is the probability of getting two heads and two tails in four flips of a fair coin?
jekas [21]
Number of  combinations possible = 4! / 2! 2! =  6

Each of these has probability 1/2*1/2*1/2*1/2  = 1/16

Required probability  = 6  * 1/16  = 3/8
3 0
3 years ago
James was trying to sleep one night but there was too much noise around him. His clock ticked every
g100num [7]

Answer:

<em>It will occur zero times between midnight and one o'clock.</em>

Step-by-step explanation:

<u>Least Common Multiple (LCM)</u>

Three events keep James from sleeping: his clock ticking every 20 seconds, a tap dripping every 15 seconds, and his dog snoring every 27 seconds.

All three events happened together at midnight. They will happen together again the first time the numbers 20, 15, and 27 have a common multiple. This is the LCM.

List the prime factors of each number:

20: 2,2,5

15: 3,5

27: 3,3,3

Now multiply all the factors the maximum number of times they appear:

LCM=2*2*3*3*3*5=540

(a) All the events will happen together again after 540 minutes.

(b) Since 540 minutes = 9 hours, this event won't happen again until 9 am. Thus, it will occur zero times between midnight and one o'clock.

4 0
3 years ago
An animal shelter spends $1.50 per day to care for each cat and $3.50 per day to care for each dog. Gianna noticed that the shel
horrorfan [7]

Answer:

2 cats were cared for

Step-by-step explanation:

c= cats

d=dogs

c+d =7

1.5c+3.5d=20.50

c+d =7

solve for d

d = 7-c

substitute into 1.5c+3.5d=20.50

1.5 c + 3.5 (7-c) = 20.50

distribute

1.5c +24.5 -3.5 c = 20.5

combine like terms

24.5 -2c =20.5

subtract 24.5 from each side

-2c = -4

divide by -2

c =2


7 0
3 years ago
Which data is considered a out liner 40,35, 44,90,23,25,28,35
lana66690 [7]
90 is the outlier
for future reference, outliers are numbers much larger or much smaller than the other numbers in a set
for example
2,3,4,21,6
or 90,87,94,12,99
7 0
3 years ago
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