MATHEMATICS HIGH SCHOOL

How do you do #1-

3x + y = 17
4x + y = 18

find for x and y

Answers

Answer 1
Answer: 1st multiply the top equation by -1 to get -3x - y = -17 then add the 2 equations together to get:

4x + y - 3x - y = 18 - 17
x = 1 (simplified down)

Now plug the 1 into either equation
4(1) + y = 18
4 + y = 18
y = 18 - 4 = 14

Your point is (1, 14)

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If two events are mutually exclusive, can they occur concurrently? explain.

Answers

Answer:

No

Step-by-step explanation:

By definition,

mutually exclusive events cannot occur together.

The simplest example of mutually exclusive events is a coin toss. A tossed coin outcome can be either head or tails, but both outcomes cannot occur simultaneously.

Ravi rented a truck for one day. There was a base fee of $20.95 and there was an additional charge of 83 cents for each mile driven. Ravi has to pay $169.56 when he returned the truck. For how many miles did he drive the truck?

Answers

Answer:

180 miles

Step-by-step explanation:

hope this helps ;)

maybe brainliest?

The vertices of a square are listed below.Q(0,0), U(0,4), A(4,4), D(4,0)

After the square undergoes an isometric transformation, its new vertices are Q'(0,0), U'(4,0), A'(4,-4), and D'(0,-4). Which of the following options best describes the type of transformation that maps QUAD onto Q'U'A'D'?

a. reflection
b. translation
c. rotation

Answers

The right answer for the question that is being asked and shown above is that: "a. reflection." After the square undergoes an isometric transformation, its new vertices are Q'(0,0), U'(4,0), A'(4,-4), and D'(0,-4). The option that best describes the type of transformation that maps QUAD onto Q'U'A'D' is that a. reflection

Answer:

Rotation

Step-by-step explanation:

I did odyssey and got it right.

Which inequality has no solution?6(x+2)> x-3

3+4x<2(1+2x)

-2(x+6)< x-20

x-9 < 3 (x-3)

Answers

Hello,

Answer B

3+4x<2(1+2x)
==>3+4x<2+4x
==>3<2 is False => no solution for x.

Answer: The answer is B, 3+4x<2(1+2x).

Step-by-step explanation:

daniel is buhying a video game that costs 52.99. the sales tax is found by multiplying the cost of the video game by 0.07. how much is the sales tax for the video game? what is the total cost, including tax?

Answers

Answer:

sales tax for video games:

52.99*0.07=3.7093

total cost, including tax?

52.99+3.7093=56.6993=56.7

All are equivalent except x<-2, x-2<4, 2x<-4, x-2<-4 ?

Answers

To figure out which is not equivalent to the others,, we must solve each option provided. x < -2 is already solved,, so there is no need to do any work that option.
The first step for solving x - 2 < 4 is to move the constant to the right side and then change its sign.
x < 4 + 2
Now add the numbers together to get your final answer.
x < 6
This means that we have one option that equals x < -2 and one option that equals x < 6.
Let's now solve 2x < -4 to see what that one equals. In order to solve this,, we need to divide both sides of the inequality by 2.
x < -2
Now we can see that it looks like all of the expressions are equivalent except for x - 2 < 4. Before we can confirm this though,, let's solve for x - 2 < -4. The first step for solving this is to move the constant to the right side and change its sign.
x < -4 + 2
Now calculate the sum of these two numbers to get your final answer.
x < -2
This tells us that all of the options are equivalent except for x - 2 < 4,, or option B.
Let me know if you have any further questions.
:)
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