What is the solution to this system of linear equations?
2x + y = 1
3x - y = -6
A. (-1,3)
B. (1,-1)
C. (2,3)
D. (5,0)

Answer:

514.1

Step-by-step explanation:

just subtract 15.90 from 530.00 and you will get 514.1

Answer:

1) one hundred twenty million five hundred forty thousand

2) 2,040 (equation: 4(5 x 102))

3) 1,872

4) 9.25, 9.325, 9.5, 9.675

5) 18.4

6) 108 (equation: 3(21) + 3(15))

7) $0.95

8) $2.50

Step-by-step explanation:

this was long

Answer:

I would say if its less than $28 then probaly 16 kilowatts.

Step-by-step explanation:

Answer:

[tex]a = 9.4[/tex]

[tex]b = 12.0[/tex]

Step-by-step explanation:

Given

See attachment

Required

Determine the values of a and b

To solve for a, we consider the first triangle.

Using Pythagoras:

[tex]a^2 = 8^2 + 5^2[/tex]

[tex]a^2 = 64 + 25[/tex]

[tex]a^2 = 89[/tex]

Take square root of both sides

[tex]a = \sqrt{89[/tex]

[tex]a = 9.4[/tex] -- approximated

To solve for b, we consider the second triangle.

Using Pythagoras:

[tex]17^2 = 12^2 + b^2[/tex]

[tex]289 = 144 + b^2[/tex]

Collect Like Terms

[tex]b^2 = 289 - 144[/tex]

[tex]b^2 = 145[/tex]

Take square root of both sides

[tex]b = \sqrt{145[/tex]

[tex]b = 12.0[/tex] --- approximated

Answer:

4: $16,000

5: $4978.66

6: .086278 or 8.62%

Step-by-step explanation:

For the entirety of this problem I am going to assume that the interest is compounding annually

4: to find the interest earned in a period you have the following equation

(principle*(1+i)^n)-Principle

We can plug in the values we know

principle=p

(p*1.04)-p=640

This means that p=640/.04

p=16000

5: This is the same deal as the other one

2016=(p*(1.12)^3)-p

Solve this and get 1.404928p-p=2016

This means that .404928p=2016

Which means that p=4978.66

6: This one is slightly different but we can still use the same formula

720=4000((1+i)^2)-4000

We can add 4000 and then divide by 4000 to get

1.18=(1+i)^2

Take the square root of both sides and subtract 1 to solve for i

i= .086278 or 8.62%

Answer:

1. Interest: $640

Rate: 4%

Time: 1 year

2. Interest: $2,016

Rate: 12%

Time: 3 years

Step-by-step explanation:

Answer:

The second one.

Step-by-step explanation:

none of the X values are the same, which is what determines functions. Plz give brainliest as this answer is right, I've had this problem before myself once.

Answer:

good luck! <3

Step-by-step explanation:

I am so sorry I do not know but best of luck to you would do amazing

Answer:

........

4/12 ...simplify it if you wanna

Answer:

umm lets seeeee

Step-by-step explanation:

Answer:

$6

Step-by-step explanation:

Step 1:

36.75 × 4 = 147

Step 2:

51 × 3 = 153

Step 3:

153 - 147 = 6

The group of 12 students will save $6 by choosing the Science Center.

Answer:

$23

Step-by-step explanation:

first you find 60% of 50

50 x .6 = 30

then you subtract 30 from 50

30 - 50 = 20

since they paid $20 for the hand bag we need to find 15% of 20

20 x 0.15 = 3

finally we add 20 and 3

20 + 3 = 23  

=============================================================

Explanation:

Because we're given multiple choices to pick from, we can go through each to do trial and error.

For instance, if v = 52, then

v/13 < -7

52/13 < -7

4 < -7

but that's a false statement since 4 is not smaller than -7. Use a number line to see this. You should have -7 to the left of 4, showing that -7 is the smaller value.

Because 4 < -7 is false, this means v/13 < -7 is false when v = 52. This rules out v = 52. You should find that v = 26 and v = -39 won't work for similar reasons.

Only v = -130 works since...

v/13 < -7

-130/13 < -7

-10 < -7

This is true because -10 is to the left of -7 on the number line.

-------------------------------------------------

Another approach:

We have some unknown number v, and we're dividing by 13 to get the expression v/13. To undo this, we multiply both sides by 13

v/13 < -7

13*(v/13) < 13*(-7) .... multiply both sides by 13

v < -91

So any solution to the original inequality must be smaller than -91. This allows us to rule out v = 52, v = 26 and v = -39.

The value v = -130 is smaller than -91, so it satisfies v < -91. Therefore, v = -130 is a solution to the original inequality.

Answer:

Yukio will pay $2 per ounce for the confetti

Step-by-step explanation:

Divide 12 and 16 that equals 0.75 then multiply 0.75 by 2 four times. and you get 2

Answer:

1. Like real numbers, the arithmetic operations, such as addition, subtraction, multiplication, and division are applicable to the rational numbers.

2. yes it is possible.

3. 403.87

4. 1.5

Step-by-step explanation: hope this help

Answer:

.-.

Step-by-step explanation:

Answer:

£1,001,258

Step-by-step explanation:

(75x4000)+(62x5350)+(49x7542)=£1,001,258

The total sales revenue of the tickets is required.

The total ticket sales revenue was [tex]\$1001258[/tex]

Number of $75 tickets sold = 4000

Number of $62 tickets sold = 5350

Number of $49 tickets sold = 7542

We multiply the number of tickets and the cost of tickets and add them.

[tex]4000\times 75+5350\times 62+7542\times49=\$1001258[/tex]

Learn more about algebra:

https://brainly.com/question/24314569

Answer:

3 and 6 and 24 top to bottom

Step-by-step explanation:

For the middle 18 divided by 6 is 3 so therefore you have to multiply 3 to 2 to get the answer for the first one. For the bottom one you have to do 8/2 and that equals 4 so you multiply 6 by 4 and 4 times 6 is 24, and the for the first one it’s pretty straight forward just divide the second column in half

Answer:

The last one is the correct answer

Answer:

1/4x<5-1

1/4x<4

x<16

last one

Answer:

for the first one its: y=-3/4x+9

for the second one its: already done

Step-by-step explanation:

Answer:

nine twelfths

Step-by-step explanation:

nine twelfths is equivalent to three fourths.

Answer:

nine twelfths i think it is answer

Answer:

The answer is 36

Step-by-step explanation:

If you do 27÷3 you get 9. So if it's 4 weeks you just add 9 which is 36

Answer:

36

Step-by-step explanation:

First, we need to know how many quizzes she takes in 1 week.

27 /3 = 9

So, what is missing here is the number of quizzes is 4  weeks, so we will multiply 4 x 9.

4 x 9 = 36

Hope this helps!

Answer:

5.8 inches

Step-by-step explanation:

Answer:

Incorrect

Step-by-step explanation:

Multiplication is incorrect, the answer is actually 144

Answer:

Uhh but I really need points haha

Step-by-step explanation:

Robin’s median score is 107. Evelyn’s median score is 138. The medians are the same as the means, so the same conclusion would be reached that Robin is winning.