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3 years ago

I have 1,141 point i thought i might share them you here you go

Mathematics

1 answer:

zaharov [31]3 years ago

7 0

Answer:

Thank you, person.

I hope this is good enough:

you want to talk about anything

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5 -2x + 6y= -38 ? 3x – 4y = 32 •(-4, - 5) •(-5, 4) •(1, – 6) (4, - 5)

Svet_ta [14]

Answer:

Option D (4, -5)

Step-by-step explanation:

This question can be solved by various methods. I will be using the hit and trial method. I will plug in all the options in the both the given equations and see if they balance simultaneously.

Checking Option 1 by plugging (-4, -5) in the first equation:

-2(-4) + 6(-5) = -38 implies 8 - 30 = -38 (not true).

Checking Option 2 by plugging (-5, 4) in the first equation:

-2(-5) + 6(4) = -38 implies 10 + 24 = -38 (not true).

Checking Option 3 by plugging (1, -6) in the second equation:

3(1) - 4(-6) = 32 implies 3 + 24 = 32 (not true).

Since all the options except Option 4 have been ruled out, therefore, (4,-5) is the correct answer!!!

7 0

3 years ago

Is 13 a prime or composite

eimsori [14]

Answer:

13 would be a prime number.

Step-by-step explanation:

Trust me :)

4 0

2 years ago

Read 2 more answers

In the town of Maplewood a certain type of DVD player is sold at just two stores, 43% of the sales 13) are from store A and 57%

umka21 [38]

Answer:

Option A 0.312 is right

Step-by-step explanation:

Given that iN Maplewood a certain type of DVD player is sold at just two stores, 43% of the sales 13) are from store A and 57% of the sales are from store B. 2.4% of the DVD players sold at store A are defective while 4.0% of the DVD players sold at store B are defective.

Prob for any random item form store to be defective = Prob from A and defective +Prob from B and defective

= $0.43(0.024)+0.57(0.04)\\=0.03312$

Prob it came from A and defective = 0. $0.43(0.024)=0.01032$

If Kate receives one of these DVD players as a gift and finds that it is defective, what is the probability that it came from store A

= $\frac{0.01032}{0.03312} \\=0.312$

5 0

3 years ago

An hour befor show time,only 155 people are seated for rockfest.According to ticket sales 95% of the people have yet to arrive

Ludmilka [50]

Question:

An hour before show time, only 155 people are seated for rockfest. According to the ticket sales, 95% of the people have yet to arrive. How many tickets were sold?

Answer:

3100 tickets

Step-by-step explanation:

Given

$p = 95\%$ --- Yet to arrive