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3 years ago

How is everyone's day going? Mine is okay can u help me on this question?

Mathematics

2 answers:

IrinaVladis [17]3 years ago

8 0

Answer:

x = 2 and y = 7

Step-by-step explanation:

We are given two equations:

1. 8x + y = 23

2. −10x - y = −27

By adding both equations with each other we get:

(1.+2.) -2x = -4

Which can be reduced to:

(1.+2. : (-2)) x = 2

We can insert x in Equation 1. (or 2) and get:

8*2 + y = 23

16 + y = 23 [-16 on both sides]

y = 7

Resulting in x = 2 and y = 7 as a possible solution for this system.

ludmilkaskok [199]3 years ago

4 0

Answer:

Step-by-step explanation:

8x + y = 23

-10x - y = -27

-2x = -4

x = 2

8(2) + y = 23

16 + y = 23

y = 7

(2, 7)

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kupik [55]

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3 years ago

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DaniilM [7]

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3 years ago

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According to the graph, what is the experimental probability of selecting the letter E?

Daniel [21]

The experimental probability of letter E is: 3/25

Step-by-step explanation:

The given diagram is the number of outcomes for each letter is given

We have to find the total number of outcomes for finding the experimental probability of letter E

So,

Total outcomes = n(S) = 5+12+8+10+6+9 = 50

Number of outcomes for Letter E = n(E) = 6

So the experimental probability will be:

$P(E) = \frac{n(E)}{n(S)}\\\\=\frac{6}{50}\\\\= \frac{3}{25}$

Hence,

The experimental probability of letter E is: 3/25

Keywords: Probability, experimental probability

Learn more about probability at:

#LearnwithBrainly

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3 years ago