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4 years ago

Find the solution to the system of equations

Mathematics

1 answer:

inna [77]4 years ago

6 0

Y = -3. Solved using elimination, although I've never seen the matrix tool before.

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A researcher believes that female stray cats are more cautious when approaching people than male cats. He knows that the stray c

Ierofanga [76]

Answer:

Step-by-step explanation:

Researcher observes that 12 out 15 cats that approached him are males.

Therefore, number of Female Cats that approached him = 15 – 12 = 3

5 0

3 years ago

Find the quotient 4/20 divided by 1/5

katovenus [111]

That would be 1.... you can ask Siri btw xD

8 0

4 years ago

Read 2 more answers

Sam the Sham is an unfair shoe salesman. He has a pair of shoes that was priced at $60 last week. To entice customers, he wants

geniusboy [140]

Let the new price of shoe before discount is “x”

75% of x = 60$
75/100x = $ 60
x = 60*100/75
x = $80

Therefore, the revised shoe price before discount should be $80, so that he can still get $60 even if he gives 25% discount.

7 0

4 years ago

Read 2 more answers

Help please!!!!!!!!

Pavel [41]

Multiply each row in the first matrix by each column in the second matrix:

1*2 + 3*3 + 1*4 1*-2 + 3*5 + 1*1

-2*2 + 1*3 + 0*4 -2*-2 + 1.5 + 0*1

Simplify to get

[15 14

-1 9]

The third choice is the correct answer.

4 0

3 years ago

In a lottery game, a single ball is drawn at random from a container that contains 25 identical balls numbered from 1 through 25

Solnce55 [7]

Answer:

17/25

Step-by-step explanation:

The equation for the probability of two events that are not mutually exclusive is:

p(A ∨ B) = p(A) + p(B) - p(A ∧ B)

A = the number is prime

B = the number is prime

The numbers are:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25

Here are the 8 prime numbers that satisfy event A:

3, 5, 7, 11, 13, 17, 19, 23

p(A) = 8/25

Here are the 13 numbers that are greater than 12 that satisfy event B:

13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25

p(B) = 13/25

Here are the 4 numbers that satisfy both event A and event B:

13, 17, 19, 23

p(A ∧ B) = 4/25

p(A ∨ B) = p(A) + p(B) - p(A ∧ B)

p(A ∨ B) = 8/25 + 13/25 - 4/25

p(A ∨ B) = 17/25

7 0

3 years ago