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IRISSAK [1]
3 years ago
8

A box contains 10 ​transistors, 3 of which are defective. If 3 are selected at​ random, find the probability that a. All are def

ective. b. None are defective.
Mathematics
2 answers:
bixtya [17]3 years ago
6 0
3/10(2/9)(1/8)

3/10(3/9)(3/8)
kherson [118]3 years ago
5 0
A) 3/10 x 2/9 x 1/8= 1/120

b) 1-1/120=119/120
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Alice, Bernice, and Cheryl shared some stamps in the ratio 8 : 9 : 18. Alice received 184 stamps. Find the number of stamps that
faust18 [17]
184/8=23
8=alice
9=bernice
18=cheryl

8:9:18=184:207:414
6 0
3 years ago
Simplify (125)^-2/3 with positive exponents and no radicals <br>show all work.<br>PLEASE HELP
Reptile [31]
For this case, what you should keep in mind are the following considerations:

 1) Rewrite the expressions correctly using the properties of the exponents: Addition, multiplication, division, subtraction and negative exponents.

 2) Simplify the expression as much as possible.

 Answer:
 See attached image.

3 0
3 years ago
5,000 tens equals how many thousands
Brilliant_brown [7]

5,000 tens = (5,000 x 10)

To find out how many thousands are in it,
just divide:

(5,000 x 10) / (1,000)  =  (5 x 10)  =  50 of them .

4 0
3 years ago
I NEED HELP PLEASE, THANKS :)
OLga [1]

A circle is made up of 360 degrees. Lets find the decimal form of each part of the circle.

White: 122.4/360 = 0.34

Red: 115.2/360 = 0.32

Silver: 68.4/360 = 0.19

Blue: 54/360 = 0.15

Now, solve for the car color that is not red or blue.

1 - (0.15 + 0.32)

1 - (0.47)

0.53

Therefore, the answer is C.

Best of Luck!

5 0
3 years ago
Martin uses 5/8 of a gallon of paint to cover 4/5 of a wall. What is the unit rate at which Martin paints in walls per gallon?
Papessa [141]

Answer:

The unit rate is 32/25 Walls per gallons.

Step-by-step explanation:

Gallons of paint used by Martin =  5/8 gallons

Portion of wall Martin wants to paint in pints = 4/5 wall.

Rate at which Martin paints the wall: Rate =  Portion of wall covered/Paints Used.

Rate = 4/5 Gallons/5/8 Gallons = 32/25 Wall Gallons.

8 0
3 years ago
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