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mel-nik [20]
2 years ago
12

Find the probability of each event. Write your answer as a fraction and as a percent.

Mathematics
1 answer:
coldgirl [10]2 years ago
8 0

Answer:

a. 1/26 , 3.8462%

b. 2/3, 66.7%

c. 1/6, 16.67%

Step-by-step explanation:

a. There are 54 cards in a standard deck, and 4 of each card

b. There are 6 possible numbers, and 4 are less than five

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Can someone please help me asap ill mark brainlist + extra points!!!! questions 4 and 5
xz_007 [3.2K]

Step-by-step explanation:

1. radius=13in

diameter= 2r =2(13)=26in

area=πr²= 22/7*(13)²

531.14in²

circumference= 2πr=2*22/7*13

81.71in

2.radius=32ft

diameter= 2r =2(32)=64ft

area=πr²= 22/7*(32)²

3218.28ft²

circumference= 2πr=2*22/7*32

201.14ft

3 0
3 years ago
Follow the directions to solve the system of equations by elimination. 8x + 7y=39 4x – 14y = -68​
harina [27]

Step-by-step explanation:

Hey there!

Here;

The equations are;

8x + 7y = 39.......(i)

4x - 14y =  - 68..........(ii)

Multiplying equation (i) by 2.

16x + 14y = 78

<u>4</u><u>x</u><u> </u><u>-</u><u> </u><u>1</u><u>4</u><u>y</u><u> </u><u> </u><u> </u><u>=</u><u> </u><u>-68</u>

20x = 10

x =  \frac{10}{20}

x = 1/2.

Putting value of 'x' in equation (i).

8 \times  \frac{1}{2}  + 7y =  39

4 + 7y = 39

7y = 3 9 - 4

y =  \frac{35}{7}

Therefore the value of y is 5.

<u>Check</u><u>:</u>

<u>Put</u><u> </u><u>value</u><u> </u><u>of</u><u> </u><u>x</u><u> </u><u>and</u><u> </u><u>y</u><u> </u><u>in</u><u> </u><u>equation</u><u> </u><u>(</u><u>i</u><u>)</u><u>.</u>

8x + 7y = 39

8 \times  \frac{1}{2}  + 7 \times 5 = 39

4 + 35 = 39

39 = 39

(True).

<u>Therefore</u><u>, </u><u>the</u><u> </u><u>solution</u><u> </u><u>is</u><u> </u><u>;</u><u> </u><u>(</u><u>1</u><u>/</u><u>2</u><u>,</u><u>5</u><u>)</u><u>.</u>

<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

8 0
4 years ago
The temperature falls from 0 degrees to -12.4 degrees in 3 hours. Which expression finds the change in temperature
Xelga [282]

Answer: should be 4.13

Step-by-step explanation: -12.4 divided by 3 is -4.13333333333 and goes on

3 0
3 years ago
Find the value of x to the nearest tenth.
Alex73 [517]

64 - 9 = 55  \sqrt{55}  =  7.4161984871

7.4161984871/2 ≈3.7

6 0
3 years ago
At Dorothy's Hair Salon, 4 gallons of shampoo will last 3 weeks. She has 7 gallons of shampoo. How much more must she order if s
Katen [24]

Answer: 4x4=16-7=9gallons

She will order 9 gallons

Step-by-step explanation:

5 0
3 years ago
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