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My name is Ann [436]
3 years ago
7

Tuan is playing a game, but the spinner is incomplete. If the numbers in the sections of the spinner represent the probabilities

of spinning each section, help him figure out the fraction for the missing section of the spinner.
1/4,1/4,1/5
Mathematics
1 answer:
ioda3 years ago
8 0

The sum of the numbers should total to 1. Let us say that x is the missing number, therefore:

x + ¼ + ¼ + 1/5 = 1

x = 1 – ¼ - ¼ - 1/5

The numbers should have similar denominator:

x = 20/20 – 5/20 – 5/20 – 4/20

x = 6/20

<span>x = 3/10</span>

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Answer:

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Step-by-step explanation:

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3 years ago
use the quadratic formula to find both solutions to the quadratic equation given below. check all that apply 5x^2-x-4=0
Setler79 [48]

Answer:

x = -4/5 and x = 1

Step-by-step explanation:

5x^2 - x - 4 = 0

Factor out x from the expression.

x (5x +4) - 5x -4 = 0

Factor out the negative sign from the expression.

x (5x + 4) - (5x+4) = 0

Factor out 5x + 4 from the expression.

(5x +4) x (x-1) = 0

When the product of factors equal 0, that means atleast one factor is 0.

5x+4= 0

x-1 = 0

Solve the equation for x.

5x + 4 = 0

Minus 4 from both sides.

5x = -4

Divide by 5.

x = -4/5

Solve the equation for x.

x - 1 = 0

Add one to both sides.

x = 1

Therefore, x = -4/5 and x = 1.

4 0
3 years ago
A 100 centimeter stick broke into 3 pieces one piece was 7 centimeters long and another was 34 centimeters long how long was the
emmasim [6.3K]
The third piece is 59 cm long. 

Add the first two pieces up. 7+34= 41. Since the whole stick is 100 cm long, subtract 41 from 100 to find the length of the third piece. 100-41=59. 
6 0
4 years ago
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explain how you could use the greatest common factor of 8 and 20 in the distributive property to write 8 + 20 as a product​
GenaCL600 [577]

Answer: 4(5+2) or 4(2+5)

Step-by-step explanation:

8 = 2*2*2

20 = 2*2*5

4(5+2) = 20+8

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