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kvasek [131]
3 years ago
6

2x-y=-1 3x-y=2 in simultaneous equations

Mathematics
2 answers:
zloy xaker [14]3 years ago
8 0

Answer:

Let's solve for x.

2x−y=−13x−y

Step 1: Add 13x to both sides.

2x−y+13x=−13x−y+13x

15x−y=−y

Step 2: Add y to both sides.

15x−y+y=−y+y

15x=0

Step 3: Divide both sides by 15.

15x

15

=

0

15

x=0

Answer:

x=0

Step-by-step explanation:

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GaryK [48]3 years ago
6 0

Answer:

{x,y}={3,7}

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Every time you conduct a hypothesis test, there are four possible outcomes of your decision to reject or not reject the null hyp
almond37 [142]

<u>Answer:</u>

<u>1. A. You allow the passenger to board his flight when the passenger has a weapon.</u>

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<em>2. While, </em><em>a </em><em>Type II error </em><em>means that </em>the assumption "the passenger has a weapon" (null hypothesis) is <em>actually false, </em>but the airport security screener <em>incorrectly concluded it is true. </em>In other words, he assumed the passenger had a weapon and selected the passenger for further inspection <u>when he actually didn't have one.</u>

6 0
4 years ago
A membership to LA Fitness is on sale for $ 112 50. That represents
RSB [31]

Answer:

Step-by-step explanation:

let the original price be x

discount is 25%, .25x

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3 years ago
A ladder is placed 30 inches from a wall. It touches the wall at a height of 50 inches from the ground.
kati45 [8]
I don't know if you need the answer to how long the ladder is or what degree the ladder and ground form so I am going to give you both.

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If you have any question let me know 
7 0
3 years ago
Read 2 more answers
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