Solve the following system of equations using ELIMINATION.
5x + y = 15
15x + 3y = 6

Answer:

C

Step-by-step explanation:

you make my head hurt by reading this

Answer:per pound would cost 2.50 and for nine pounds it would cost 22 dollars and 50 cent

Step-by-step explanation:

750 divided by 3=250 just add your point were before five and 7.50 plus 7.50 equals 15 plus 7.50 equals 22.50

Answer:

$8.75

Step-by-step explanation:

Answer:

Answer 3 (y=55x+20)

Step-by-step explanation:

The question says 55 each, meaning we don't know how much so u put x after 55. 20 is the additional cost that you pay only once.

Answer:

x=7  y=8  z=2

Step-by-step explanation:

The value of all three numbers will be 7, 8, and 2  for the given condition.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's say the first number is x, the second is y and the third is z.

The sum of three numbers is 17 ⇒

x + y + x = 17

The sum of twice the first number, 4 times the second number and 5 times the third number is 56 ⇒

2x + 4y + 5z = 56

The difference between 7 times the first number and the second number is 41 ⇒

7x - y = 41 ⇒ y = 7x - 41

By substituting this y into the above equation.

A newly formed equation will be

-40x - 5z = -290

30x + 5z = 220

By solving them x = 7 and z = 2 by that y = 8

Hence all three values will be 7,2 and 8.

For more about the equation

https://brainly.com/question/10413253

#SPJ2

Answer:

2.66666 (it goes on forever)

Step-by-step explanation:

16 divided by 6 is 2 2/3

Answer:the answer could possibly be 28 I think:)

Answer:

1 & 2 = Right Triangles

3 & 4 = Not Right Triangles

Step-by-step explanation:

Solved Using Pythagorean Theorem:

1) [tex]9^{2} + 12^{2}[/tex] = 225

[tex]15^{2}[/tex] = 225

2) [tex]15^{2} + 36^{2}[/tex] = 1521

[tex]39^{2}[/tex] = 1521

3) [tex]10^{2} + 26^{2}[/tex] = 776

[tex]28^{2}[/tex] = 784

4) [tex]10^{2} + 12^{2}[/tex] = 244

[tex]16^{2}[/tex] = 256

Answer:

1

Round up if this number is greater than or equal to

5

and round down if it is less than

5

122

Hope I helped

40x30=120x5=600x6=3600

Awnser:3600

Answer: It’s 3/2(cos(75) + isin(75))

Step-by-step explanation: you multiply 3 and 1/2 first. then add 60 and 15! (edge)

Answer:

A

Step-by-step explanation:

3/2[cos(75º) + i sin (75º)]

Answer:

2/1 or 2

Step-by-step explanation:

m(slope)= y2-y1/ x2-x1

i hope this helps

Answer: -2

Step-by-step explanation:

The lowest point is at (-4,-2) and they are asking for the y value which is -2. C

From the graph, it is taken the the minimum value of the function in the interval is given by -2.

In this problem:

A similar problem is given at https://brainly.com/question/24294701

Answer:

Alternate Interior- 9 and 7, 13 and 3, 8 and 10, 14 and 4

Alternate Exterior- 11 and 5, 6 and 12, 2 and 16, 1 and 15

Corresponding Angles - 6 and 10, 5 and 9, 11 and 7, 12 and 8, 2 and 14, 15 and 3, 1 and 13, 16 and 4

Vertical Angles- 13 and 15, 14 and 16, 1 and 3, 4 and 2, 5 and 7, 6 and 8, 9 and 11, 10 and 12

Answer:

A) 565.2

Step-by-step explanation:

Get the diameter (18*2=36) then multiply 36 by 3.14. You will then get 113.04. Multiply that by 5 and you get your answer 565.2

Answer:

y = 0.28X - 0.77

Step-by-step explanation:

Given the data :

X:

40

32

38

21

у:

10

8

10

5

Equation of regression line is in the form:

y = mx + c

Where y = predicted variable ;

c = intercept ; m = slope or gradient ; x = predictor variable

Using The correlation Coefficient calculator :

The regression equation obtained is :

ŷ = 0.2754X - 0.77028

Rounding values in our regression output to 2 decimal places :

y = 0.28X - 0.77

Hence best model to make prediction :

y = 0.28X - 0.77

Answer:

140

Step-by-step explanation:

What is 20 percent (calculated percentage %) of number 700? Answer: 140.

Answer:

The slope is 1

Step-by-step explanation:

Slope can be found using the expression [tex]\frac{y2-y1}{x2-x1}[/tex]

In this case,

y2 = 3

y1 = 1

x2 = 6

x1 = 4

[tex]\frac{3-1}{6-4}[/tex]  =  2/2 = 1

Answer: 243.6

Step-by-step explanation:

For us to solve the question and round off 243.583 to the nearest tenth. First, we need to look at the number beside the tenth number which is 8.

Since 8 is more than 4, we simply add 1 to the tenth number which implies that we add 1 to the number in tenth place which is 5. Adding one means the number change to 6. Therefore, rounding 243.583 to the nearest tenth will be 243.6.

Answer:

0.04

Step-by-step explanation:

Answer:

the answer is 16

Step-by-step explanation:

i dont see any model but thats the result. (also so u don't waste points u can just use a calculator for things like this in the future)

Answer:

I think its 16

Step-by-step explanation:

if you take 96/6 you get 16

if theres nothing specific to add or change then just divide like normal  

Answer:

correct me if i'm wrong but i think

1.False

2.False

3.True

4.True

Answer:

Step-by-step explanation: i did the quiz

Answer:

[tex]2x[/tex] is the expression we determine after following the steps 'Start with x and double it'.

Step-by-step explanation:

As we have to determine the expression based on a mentioned series of steps.

The series of steps:

As the double value of x would be 2x, therefore, the required expression would be: 2x

Therefore, [tex]2x[/tex] is the expression we determine after following the steps 'Start with x and double it'.

Answer:

the answer is c I pretty sure

Answer:

y = 2x - 1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = A(4, 7) and (x₂, y₂ ) = B(2, 3)

m =  =  = 2, thus

y = 2x + c ← is the partial equation

To find c substitute either of the 2 points into the partial equation.

Using B(2, 3), then

3 = 4 + c ⇒ c = 3 - 4 = - 1

y = 2x - 1 ← equation of line