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tia_tia [17]
3 years ago
12

Find each unit rate

Mathematics
1 answer:
WITCHER [35]3 years ago
3 0
1/2 dozen pencils in 1/3 box
what about 1 dozen
we cross miltiply this to get
1/3*2=2/3
doing the same for all the questions we get
1/4*5/4=5/20

3/4*5/3=15/12

3/10*12/7=18/35

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Evaluate 5xyz + 3y for x=2.5, y=12, and z=4
Reika [66]

Answer:

636

Step-by-step explanation:

5xyz+3y

5(2.5)(12)(4)+3(12)

(12.5)(48)+36

600+36

636

8 0
3 years ago
Can you help me with these 4 problems?
adoni [48]
What are the questions attach a pic plz
3 0
3 years ago
A drawer contains 12 brown socks and 12 black socks, all unmatched. A man takes socks out at random in the dark. 21. Required in
avanturin [10]

Answer:

6  socks

Step-by-step explanation:

What we must do is calculate the probability of this happening, that he takes out two black socks in the first two taken out.

There are 12 black socks and in total they are 24, therefore the probability of drawing 1 is:

12/24

and now the probability of getting another one is 11 (there is one less outside) and in total they are 23:

11/23

the final probability is the multiplication of these events:

(12/24) * (11/23)

P = 0.24

Now, to know how many you should get, we multiply the probability by the total number of socks, that is:

0.24 * 24 = 5.76

So you must take out at least 6 socks for the above to happen.

6 0
3 years ago
Every 24 hours, the earth rotates 360° about its axis. How
Usimov [2.4K]

360 degrees / 24 hours = 15 degrees per hour


150 degrees / 15 degrees per hour = 10 hours


Answer: 10 hours

8 0
2 years ago
If a gas tank of a large truck holds 64 gallons of gas if the tank is 5/8 full how many gallons of gas is in truck
den301095 [7]
Find 5/8 of full
find 5/8 of 64
5/8 times 64/1=320/8=160/4=80/2=40
answer is 40 gallons in the trick right now
4 0
3 years ago
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