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2 years ago

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Mathematics

2 answers:

Delvig [45]2 years ago

5 0

Answer:

A y = -4x + 2

Step-by-step explanation:

1) x, y = -2, 10

y = -4x + 2

y = -4 . -2 + 2

y = 8 + 2

y = 10

2) x, y = 0, 2

y = -4x + 2

y = -4 . 0 + 2

y = 2

3) x, y = 1, -2

y = -4x + 2

y = -4 . 1 + 2

y = -4 + 2

y = -2

4) x, y = 3, -10

y = -4x + 2

y = -4 . 3 + 2

y = -12 + 2

y = 10

<h3>#CMIIW</h3>

Nuetrik [128]2 years ago

4 0

Answer:

The answer is option A

y=-4x+2

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Use the graph below to estimate the solution to the system of equations shown.

Mila [183]

Answer: The second choice is answer.

Step-by-step explanation:

<h3>The first line (Blue One)</h3>

$y=-x-3$ (Slope is -1 and intercepts y at -3)

<h3>The second one (Red One)</h3>

$y=2x-8$ (Slope is 2, to find y-intercept. Substitute x = 0 then we get -8) (For x-intercept, it's 4. Just substitute y=0 to get x-intercept.)

Because there are choices, it's easy to notice.

The first one, x = -4 and almost -5 which is not right. (x is around 1 almost 2.)

The second one, x = 1 and almost 2 is right.

The third one, x = -1 and almost -2 is not right (The intersection isn't even at -1 or any negative number for x-axis.)

The fourth one, just like the first one... x = 4 almost 5

<h3>Or solve the equations.</h3>

$y=-x-3\\y=2x-8$

Substitute y=2x-8 in y=-x-3

$2x-8=-x-3\\2x-8+x+3=0\\3x-5=0\\3x=5\\x=\frac{5}{3}\\(x=1\frac{2}{3})$

Look at the value of x then find the answer that matches the value of x.

Now for y, substitute x = 5/3 in y = -x-3 (or in 2x-8 if you want.)

$y=-\frac{5}{3} -3\\y=-\frac{5}{3} -\frac{9}{3} \\y=-\frac{14}{3} \\(y=-4\frac{2}{3} )$

So the answer is the second choice.

6 0

3 years ago

A typical tip in a restaurant is 18% of the bill. If the bill is 150,what would the typical tip be

Natasha_Volkova [10]

You want to leave a 18% tip on a meal that cost $150.

First, convert the 18% to an actual number that can be used in a calculation. For percents,this is always done by simply dividing the percent (in this case 18%) by 100%.So, the conversational term "18%" becomes 18% / 100% = 0.18 in terms of a real mathematical number.

Second, you need to find out what 18% of your $150 meal cost is.This is always done by multiplying 0.18 by $150.00, or

0.18 x $150.00=$27.00.

So, the amount of tip you are going to leave is $27.00.

This makes the total cost of your meal (to write on your charge slip or other payment)

$150.00 + $27.00 = $177.00.

-By TheRealMarinette

Please do not copy N Paste This Answer.

8 0

2 years ago

Billy is a professional baseball player. He had 99 singles, 47 doubles, 4 triples, and 15 home runs in his first year playing. I

Maurinko [17]

Answer: 792

Step-by-step explanation:

From what I got it should be 792 because it is asking for doubles, triples, and home runs all together at the same amount that he got on his first year.

It says after 12 years

Doubles 47 times 12 years = 564

Triples 4 times 12 years = 48

and

Home runs 15 times 12 years = 180

564 + 48 = 612

612 + 180 = 792

8 0

3 years ago

Read 2 more answers

What is the answer to the equation 6x-x/x+1

avanturin [10]

Answer:

5x/x+1

Step-by-step explanation:

Numerator: 6x minus an x equals 5x.

Denominator: Since x and 1 are not like terms, they can't be combined. You just leave them as they were.

Hope this helps!

6 0

3 years ago

Freeeeeeee POINTS!!!!!!! !!!!❤!!!!!

pychu [463]

Answer:

thanks i guess

Step-by-step explanation:

6 0

3 years ago

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