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GaryK [48]
3 years ago
8

Solve the system of equations -4x+11=15 and x=2y

Mathematics
1 answer:
bixtya [17]3 years ago
8 0

Answer:

x = -, y = - 1/2

Step-by-step explanation:

- 4x + 11 = 15 \\  - 4x = 18 - 11 \\  - 4x = 4 \\ x =  \frac{4}{ - 4}  \\ \red{ \bold{ x =  - 1}} \\ x = 2y \\ 2y =  - 1 \\ \purple{ \bold{ y=  -  \frac{1}{2} }}

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ollegr [7]

Answer:

Expected winnings for one spin = 0.1

Step-by-step explanation:

Expected Value = Sum of [(Probability of X)(Value of X)]

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E(X) = [(68) (1/38)] + [(-2)(37/38)]

[(68)(0.03)] + [(-2)(0.97)]

= 2.04 - 1.94

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4 0
3 years ago
1. Look at the table.
Bezzdna [24]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
The table represents a linear function. Find the values of A and B.​
bazaltina [42]

Answer:

The answers are that a = -5 and b = 1

Step-by-step explanation:

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m(slope) = (y2 - y1)/(x2 - x1)

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y - 5 = -2(x - 0)

y - 5 = -2x

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y = -2x + 5

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And we can also solve for b using the ordered pair (2, b)

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4 0
3 years ago
Can you help me do this Q please :)
goldenfox [79]

Answer:

i didnt get it

Step-by-step explanation:

can you explain

3 0
3 years ago
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Arisa [49]
(2x^2 -5y)/(3x-y)
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(4^2+20)/(-12+4)
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8 0
3 years ago
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