Solve the system if equations by substitution
Y=4x+9
y=9x+10

Answer:I believe this answer is they did not have enough troops to attack the USSR

Step-by-step explanation:

I

Answer:

i just needed points sorry

Step-by-step explanation:

dsgdjgdhjKDBHJSW

Answer: 2 1/2

Step-by-step explanation:

if you have 3 groups of 2 apples and the goal was to have 5, 2 groups would make 4 apples, then you would only need half of a group to make 5 since half of 2 is 1

Answer:

Angle K

Step-by-step explanation:

Answer:

The answer is answer choice A

Answer:

Only X-1

Step-by-step explanation:

[tex]f(x) = x + 5x + 2x - 8 \\ f(x) = 8x - 8 \\ let \: x = 1 \: be \: the \: root \: of \: f(x) \\ f(1) = (8 \times 1) - 8 = 0 \\ hence \: 1 \: is \: the \: root \: of \: the \: equation \\ therefore \: x = 1 \\ x - 1 = 0 \\ hence \: x - 1 \: is \: the \: fator \: of \: f(x)[/tex]

Answer:

The answer is salinity because when the higher it is, the more it increases the density.

Beside temperature, salinity can make ocean water significantly denser.

"Temperature is a physical quantity that expresses hot and cold or a measure of the average kinetic energy of the atoms or molecules in the system."

"Salinity is the saltiness or amount of salt dissolved in a body of water, called saline water (see also soil salinity)."

"Seawater is a complex mixture of 96.5 percent water, 2.5 percent salts, and smaller amounts of other substances, including dissolved inorganic and organic materials, particulates, and a few atmospheric gases."

Hence, salinity make the ocean water significantly denser.

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Answer:

18.3824%

Step-by-step explanation:

Sorry, this may be wrong. I am using an old skill, so it may be wrong.

Given:

The ratio of the length to the width of a rectangle is 10:6.

Perimeter = 160 meters

To find:

The measure of the width.

Solution:

Let the length and width of the rectangle be 10x and 6x respectively.

Perimeter of a rectangle is

[tex]P=2(l+w)[/tex]

where, l is length and w is width.

Putting P=160, l=10x and w=6x, we get

[tex]160=2(10x+6x)[/tex]

[tex]160=2(16x)[/tex]

[tex]160=32x[/tex]

Divide both sides by 32.

[tex]\dfrac{160}{32}=x[/tex]

[tex]5=x[/tex]

Now,

[tex]Width=6x[/tex]

[tex]Width=6(5)[/tex]

[tex]Width=30[/tex]

Therefore, the width of the rectangle is 30 meters.

Answer:

150(1.28^t). ^ sign is to the power of

Answer:

The angle is 30.  It's complement is 60.

Step-by-step explanation:

Complementary angles add up to 90.

x + (5x-90) = 90

6x = 180

x = 30

The measure of the angle is 60 degrees.

Let's denote the angle as "x." The complement of angle x would be 90 degrees minus x.

According to the given information, the angle is 90 less than 5 times its own complement. Mathematically, we can express this as:

x = 5(90 - x) - 90

Now, let's solve this equation to find the value of x:

x = 450 - 5x - 90

x + 5x = 450 - 90

6x = 360

x = 360/6

x = 60

That is the angle.

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Answer: 16 feet and 6 inches?

Step-by-step explanation:

Answer:

Simple, The Flag Pole is 16 feet and 6 Inches

Step-by-step explanation:

PLEASE MARK ME BRAINLIEST

Answer:

2x^3/y^5

Step-by-step explanation:

Answer:

m=0

Step-by-step explanation

the y value does not change therefore it is a straight horizontal line which has no slope (otherwise known as 0 slope)

Answer:

2500

Step-by-step explanation:

i calculated it

2.5 Km can be expressed as 2500 in meters.

To convert from kilometers to meters,

The conversion factor for kilometers to meters is

1 kilometer = 1000 meters.

Given that we want to convert 2.5 kilometers to meters, we can use the conversion factor:

2.5 km x 1000 meters/kilometer

= 2500 meters

So, there are 2500 meters in 2.5 kilometers.

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Answer:

Slope = -4

x intercept = 3

Step-by-step explanation:

See attachment for graph

Required

a. Determine the slope

b. Find the x intercept and explain what it represents

a. The slope

To calculate the slope, we start by selecting any two corresponding values of x and y from the graph.

[tex](x_1,y_1) = (3,0)[/tex]

[tex](x_2,y_2) = (0,12)[/tex]

Next, we calculate the slope (m)

[tex]m = \frac{y_1 - y_2}{x_1 - x_2}[/tex]

[tex]m = \frac{0 - 12}{3 - 0}[/tex]

[tex]m = \frac{- 12}{3}[/tex]

[tex]m = -4[/tex]

b. The x intercept

This is the point where [tex]y = 0.[/tex]

From the graph.

[tex]x = 3[/tex]  when [tex]y = 0[/tex]

This implies that:

After 3 hours, the distance left to cover is 0miles.

In other words, she arrived home in 3 hours

Answer:

y=2/3x-8

Step-by-step explanation:

Answer:

y=(2/3)x-8

Step-by-step explanation:

y=mx+b

m(slope)= 2/3   b(y-intercept)= -8

plug in the given slope and y-intercept

Answer:

5/3

Step-by-step explanation:

2 2/3 * 5/8

~Turn both into improper fractions

8/3 * 5/8

~Multiply

40/24

~Simplify

5/3

Best of Luck!

Answer: Your answer should be 1.

The given equation 2(x + 2) = 2 + 2x has zero solution. which is the correct answer would be an option (A).

A linear equation is defined as an equation in which the highest power of the variable is always one.

The equation is given in the question following:

2(x + 2) = 2 + 2x

We have to determine the number of solutions to the given equation.

As per the given question, we have

⇒ 2(x + 2) = 2 + 2x

Apply the distributive property of multiplication, and

⇒ 2x + 4 = 2 + 2x

Rearrange the terms of variable x in the above equation,

⇒ 2x - 2x = 2 - 4

⇒ 0 = -2

This is not true, so the given equation has no solution.

Thus, the equation 2(x + 2) = 2 + 2x has zero solution.

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Answer:

The parent function is: y = x

First, here we have two types of transformations, and we could define them in a general way as:

if we start with a function f(x)

Vertical dilation/contraction: A vertical dilation/contraction of scale factor A (A is always positive) is written as:

g(x) = A*f(x)

Vertical translation:

We can write a vertical translation of A units upwards as:

g(x) = f(x) + A

And a vertical translations of A units down can be written as:

g(x) = f(x) - A.

In this case, the transformations are:

first, a dilation of scale factor 8.

Then a translation down of 21 units

then another translation down of 7 units.

y = 8*X - 21 - 7

y = 8*x - 28.

As this is a linear equation, there are no axis of symmetry, we only could have a line of symmetry along the same line y = 8*x - 28

Again, as this function is a linear equation there is no vertex.

Answer:31.5

Step-by-step explanation:trust me bro

Answer:

31.5

Step-by-step explanation:

100%-45

70%-x

Cross multiply

100x=3150

÷100    ÷100

______________-

x=31.5

Hope this helps P.s I recommend using this method its very helpful for these kind of problems!

Note: Cost of second iron must be 1200 instead of 12000.

Given:

Cost of first electric iron = 900

Grain on first electric iron = 10%

Cost of second electric iron = 1200

Loss on second electric iron = 5%

To find:

The correct statement for the given problem.

Solution:

We have,

Cost of first electric iron = 900

Grain on first electric iron = 10%

Profit on first iron is

[tex]900\times \dfrac{10}{100}=90[/tex]

Cost of second electric iron = 1200

Loss on second electric iron = 5%

Loss of second iron is

[tex]1200\times \dfrac{5}{100}=60[/tex]

Now, profit is 90 and loss is 60. Profit is more than loss.

Exact profit = Profit - Loss

Exact profit = 90 - 60

Exact profit = 30

Therefore, Avinash get a profit of Rs. 30 on the transactions. Hence, the correct option is c.

Answer:

no

Step-by-step explanation:

Answer:

f(3) = -11

Step-by-step explanation:

plug in 3 for x

f(3) = -4(3) +1

f(3) = -12 +1

f(3) = -11

Answer:

The answer is 1

Step-by-step explanation:

2(a+7)−7=9

Step 1: Simplify both sides of the equation.

2(a+7)−7=9

(2)(a)+(2)(7)+−7=9(Distribute)

2a+14+−7=9

(2a)+(14+−7)=9(Combine Like Terms)

2a+7=9

2a+7=9

Step 2: Subtract 7 from both sides.

2a+7−7=9−7

2a=2

Step 3: Divide both sides by 2.

2a

2

=

2

2

a=1

Answer:

36

hope this helps

Step-by-step explanation: