Choose the best answer. What is the value of the expression x + (-y) when x = 1.2
and y = -10.72
-9.5
11.9
-11.9
9,5

Answer:

(1, 4)

Step-by-step explanation:

For people who are wanting to answer this question, just rotate this image three times to get the 90 degree counterclockwise image of the triangle :   )

Step-by-step explanation:

The constant of proportionality is the ratio of the cost to the number of pounds of walnuts.  In other words, it is the price of one pound of walnuts.

$10.92 / 4 lb = $2.73 / lb

The constant of proportionality that relates the cost in dollars, y, to the number of pounds of walnuts, x is $2.73 lb

Firstly, there is proportional relationship.

Two values x  and  y are said to be in a proportional relationship if x=ky, where x and y are variables and k is a constant.

The constant k is called constant of proportionality.

The constant of proportionality can be calculated as the ratio of the cost to the number of pounds of walnuts.  

x = number of walnuts

y = cost of walnutsin dollars

In other words, it is the price of one pound of walnuts now we have;

Constant of proportionality =$10.92 / 4 lb = $2.73 / lb

Learn more about directly inversely proportional relationship variable here:

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Answer:

The last one please.

Answer:

-3x

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Write expression

2x - 5x

Step 2: Combine like terms (x)

-3x

Answer:

x=[tex]\frac{+}[/tex]5 or x=5, x=-5

Step-by-step explanation:

If the question is [tex]x^{2}=25[/tex] then you take the square root of both sides. [tex]\sqrt{x^{2}}=\sqrt{5^{2}}[/tex] because 25=5*5=[tex]5^{2}[/tex].

When you simplify you get x=[tex]\frac{+}[/tex]5

So x=-5, =5.

Answer:

k = 3/13

Step-by-step explanation:

7k-3=6k

3 = 6k + 7k

13K = 3

k = 3/13

Answer:

Maura had 12 cards initially

Step-by-step explanation:

Represent Dai's card with D and Maura's card with M.

From the first statement, we understand that:

D = 4 more that twice of M

This is represented as:

D = 4 + 2M

From the second statement, we understand that.

When 8 is subtracted from D, M is increased by 8 and both are equal.

This is represented as:

D - 8 = M + 8

Hence, the equations of the system is:

D = 4 + 2M

D - 8 = M + 8

Substitute 4 + 2M for D in the second equation

4 + 2M - 8 = M + 8

Collect like terms

2M - M = 8 - 4 + 8

M = 12

To solve for D, we simply substitute 12 for M in D = 4 + 2M

D = 4 + 2 * 12

D = 4 + 24

D = 28

Hence, Maura had 12 cards initially

Answer:

5

Step-by-step explanation:

At 7 on the y-axis, the x-axis is 5

Answer:

no real equations

Step-by-step explanation:

the line isnt touching the x intercept line meaning there wouldn't be any equations to begin with

OPTIONS:

*The slope of the graph of the table is 1 more than the slope of the graph of the equation.

*The slope of the graph of the table is 2 more than the slope of the graph of the equation.

*The slope of the graph of the equation is 2 more than the slope of the graph of the table.

*The slope of the graph of the equation is 1 more than the slope of the graph of the table.

Answer:

The slope of the graph of the equation is 1 more than the slope of the graph of the table.

Step-by-step explanation:

The slope in the equation of the function, y = 3x + 2, is identified as 3.

We know this because, the equation for the function was given in the slope-intercept form, y = mx + b, where m represents the slope.

Therefore, the slope of the function is 3.

The slope of the function represented by the table of values can be calculated using any two given pairs on the table.

Using (1, 6) and (3, 10):

[tex] slope (m) = \frac{y_2 - y_1}{x_2 - x_2} = \frac{10 - 6}{3 - 1} = \frac{4}{2} = 2 [/tex]

Slope of the function represented by the table of values is 2.

Therefore, comparing the slope of both functions, we can conclude that:

✅"The slope of the graph of the equation is 1 more than the slope of the graph of the table."

Answer:

x = -6 and y = -3

Step-by-step explanation:

x- 4y =6

x =4y +6......(i)

5x -4y =-18

20y +30 - 4y = -18

16y = -48

y = -3

x = -12+6

x = -6

Answer:

This can be written algebraically as 5% ⋅ x + 9 = 16. If you want to solve for x, you’ll get x=140

Step-by-Step Explanation:

The attached picture is how to solve for x step-by-step.

Hope this helps and answers your question! :)

Answer:

A, 6 and B, 4

Answer:

.

Step-by-step explanation:

(x+2)(x+4)

=x(x+4)+2(x+4)

=x²+4x+2x+8

=x²+6x+8

E because it's in order

Answer:

proportional

Step-by-step explanation:

Answer: Yes it is proportional

Step-by-step explanation:

Answer:

its 90

Step-by-step explanation:

Answer:

Step-by-step explanation:

2(2x-1)=6(x+2)  PEDMAS

4x-2=6x+12  subtract 4x from both sides

-2=2x+12  subtract 12

-14=2x  divide by 2

x=  -7

Answer:

x = -7

General Formulas and Concepts:

Pre-Algebra

Step-by-step explanation:

Step 1: Define equation

2(2x - 1) = 6(x + 2)

Step 2: Solve for x

Step 3: Check

Plug in x to verify it's a solution.

Here we see that -30 does indeed equal -30.

∴ x = -7 is a solution of the equation.

Answer:

saclene obtuse

Step-by-step explanation:

sides all different and one angles is obtuse

Answer:

M= 32 x 3

M= 96

Carly ran 96 miles

Step-by-step explanation:

May I have brainliest please? :)

Answer:

Wind causes blade to move

Step-by-step explanation:

As blade moves, turbine work, and thus v get electricity from wind

Have a GOOD DAY.....

Answer:

It Is O. 8

Step-by-step explanation:

Because you are suppose to round the number to the one in front of the other number

83/100 83%

.......................

Answer:

14-C

15-B

16-D

17-C

Step-by-step explanation:

.......

Answer:

The answer would be $3.75

This can be easy if you take $5 and multiply it by 3/4 and you will get that answer!

I hope this helps :)

Step-by-step explanation:

Plz mark B R A I N L I E S T