product of x and 7y in algebraic expression

Answer:

x=−4,y=−3

Step-by-step explanation:

Solve for y in the second equation.

y=5+2x

3x−3y=−3

Replace all occurrences of y with 5+2x

in each equation.

−3x−15=−3

y=5+2x

Solve for x in the first equation.

x=−4

y=5+2x

Replace all occurrences of x with −4

in each equation.

y=−3

x=−4

Answer:

Step-by-step explanation:

y=-4x+13

if

the slope-intercept form of a linear equation is

where,m is slope and b is y-intercept

let's justify the first and second statement

our given equation is

y=-4x+13

where -4 is our slope or m

therefore,

1 and 2 statements are False

let's justify the third and fourth statement

our given equation is

y=-4x+13

where,13 is our y-intercept which means the line passes y-intercept when x=0

therefore,

third and fourth statements are False

The statement which is true regarding the line y = -4x + 13 is; The line passes through the point, (0, 13)

The equation of a straight line in slope-intercept form is usually of the form; y = mx + c

where m = slope and c is the y intercept with coordinate (0, c)

The statement which is true is therefore; The line passes through the point, (0, 13)

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Answer:

Add 5 for the first one

The 2nd one is 25 and k or 25 thousand.

Step-by-step explanation:

add 5 for the first one because 5 + 5 = 10

9 + 5 = 14 .   and 13 + 5 = 18.

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

For the 2nd one:  25k means 25 thousand or the Product of 25 and k.

Answer:

314

Step-by-step explanation:

Answer:

no solution

Step-by-step explanation:

3х – 5 = 3(х – 1)

Distribute

3x -5 = 3x -3

Subtract 3x from each side

3x -5-3x = 3x -3 -3x

-5 = -3

This is not true so there is no solution

Answer:

3x-5=3x-3

3x-3x-5+3=0

x-2

x=2

substituting x=2

3x-5=3(x-1)

3×2-5=3(2-1)

6-5=6-3

1=3

yeah...its no equal

Answer:

x = 12.17

Step-by-step explanation:

we use the tan function

[tex]\tan \theta = \fra{opp}{ady}\\\\\tan(49) = \frac{14}{x}\\\\x=\frac{14}{\tan 49}\\\\x \approx 12.17[/tex]

Answer:

a =  5 seconds and b = 50 inches c = No, because it starts at 50 inches and only goes down after that. This means it will never be at 120 inches.

Step-by-step explanation:

A. Solve it as a quadratic equation where h = 0 (because it will be 0 inches above the water).

0 = - 16t^2 + 70t + 50

0= -2(8t^2 - 35t -25)

0= -2(t - 5)(8t + 5)

Since the amount of time has to be positive, t - 5 = 0, so t = 5 seconds

B. Substitute t = 0 into the equation.

h = -16(0)^2 + 70(0) + 50

h = 0 + 0 + 50

h = 50 inches

C. It's diving, so it's only going down and won't reach 10 feet.

Answer:

2,2

Step-by-step explanation:

Equations are all good

The ordered pair (2, 1) satisfies the given equations. Therefore, the answer is option (C).

To solve the system of equations y = 2x - 3 and y = 3x - 6, we need to find an ordered pair (x, y) that satisfies both equations.

We can do this by completing the table of values for each equation and finding the values of x and y that make both equations true.

For the equation y = 2x - 3, we can complete the table as follows:

x: -1, 0, 1, 2, 3

y: -5, -3, -1, 1, 3

For the equation y = 3x - 6, we can complete the table as follows:

x: -1, 0, 1, 2, 3

y: -9, -6, -3, 0, 3

From these tables, we can see that the ordered pair (2, 1) satisfies both equations.

Therefore, the answer is (2, 1).

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The complete question is as follows:

Consider the equations y = 2x - 3 and y = 3x - 6. Solve the system of equations by completing the table to find an ordered pair that satisfies both equations.

A) (0, 3)

B) (1, -1)

C) (2, 1)

D) (2, 2)

Answer: Yes

Step-by-step explanation: Yup yup yup

Answer:

The constant of proportionality is 28

Step-by-step explanation:

For the constant of proportionality, you'll want to basically find the slope.

The constant of proportionality, k, is defined as:

[tex]k=\frac{y}{x}[/tex]

Thus, we can do this for all three values and reach a conclusion:

[tex]k=\frac{224}{8}[/tex]

[tex]k=\frac{280}{10}[/tex]

[tex]k=\frac{112}{4}[/tex]

In each of these cases, we see that the value of k is 28, therefore, the constant of proportionality is 28

For the second problem, put the cards in their respective places on the number line given.

Hope this helps!

Answer:

Rick ran 5.6 miles on Thursday.

Step-by-step explanation:

Let's first find the speed Rick ran on Wednesday.

D=RT

4.2 = (3/4)R

R = 5.6 mph.

D=RT

D=(5.6 mph)(1)

D=5.6 miles

Let me know if this helps!

Answer: p = 8750 kg·m/s

Step-by-step explanation:

The coordinates of the centroid of the triangle STU is: (3, 1).

Recall:

Thus, given the vertices of a triangle as: S(5, 5), T(11, -3), U(-1, 1)

[tex]S(5, 5) = (x_1, y_1)\\\\T(11, -3) = (x_2, y_2)\\\\U(-1, 1) = (x_3, y_3)[/tex]

[tex](x, y) = (\frac{5 + 11 +(-1)}{3}, \frac{5 + (-3) + 1}{3})\\\\(x, y) = (\frac{15}{3}, \frac{3}{3})\\\\\mathbf{(x, y) = (3, 1)}[/tex]

Therefore, the coordinates of the centroid of the triangle STU is: (3, 1).

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Answer:

-163840

Step-by-step explanation:

Answer:

Write it like x>3 instead.

Work:

Solve for  x  by simplifying both sides of the inequality, then isolating the variable.

Answer:

25 is the answer , youre looking for the rate of change

Step-by-step explanation:

Full question:

The longest side of an obtuse triangle measures 20 cm. The two shorter sides measure x cm and 3x cm. Rounded to the nearest tenth, what is the greatest possible value of x?

Answer:

5

Step-by-step explanation:

Note: an obtuse triangle is a triangles in which one of the interior angles is more than 90 degrees. Sum of angles in triangle =180 degrees

The longest side of a triangle here is the hypotenuse. To find the unknown side of a triangle, we use the Pythagorean theorem. We already know the hypotenuse hence:

20= √(x²+3x²)

20=4x

x=20/4=5

x= 5

Answer:

the answer is one fourth 1/4

can u mark me as brainliest

Answer:

x=32

Step-by-step explanation:

x/4=8

4(x/4=8)

x=32

Answer:

Your answer is C like I said earlier

Step-by-step explanation:

Some person deleted my answer from a couple days ago...

Answer:

14500

Step-by-step explanation:

do 145 multiplied by 100

Answer:

-34

Step-by-step explanation:

Answer:

A. -34

Step-by-step explanation:

solution

original price = final price+ decrease percent × final price

original price = $90 +80% ×$90

original price = $90+80/100 ×$90

original price= $90+$72

original price= $162

Answer:

The answer is 10

Step-by-step explanation:

First, take the length from the other sides which is

18/20 then simplify it

you get 9/10

so the answer is 10

Answer:

Angle! hope you get an A

Step-by-step explanation:

Hope this helps

Answer:0.13

Step-by-step explanation:

Answer:

You can use substitution, elimination, or graphing.

Step-by-step explanation:

So what I would do, is using elimination because you have two variables that are the same, what I mean is that you have two -3y's, So, take one equation, lets do the top one, and multiple the whole thing, yes, the WHOLE THING meaning both sides by -1. This will give you -6x+3y= -12. The negative turns to positive because you multiply the -3y by -1. Notice how you have a +3y in the top equation now and a -3y in the bottom one. This is why the method is called elimination, you can cross out the +3y and -3y and combine both equations. You now have -2x=12. Divide both sides by -2, x=-6. Plug -6 in the first equation, you get 6(-6)-3y=12 which goes to -36-3y=12. Add 36 on both sides, you get -3y=48. Divide both sides by -3, you get y=-16. Oh yeh, plug y into one of the equations and solve for x, i forgot to say that.