Which of the following is usually the first step in solving a system of nonlinear equations by substitution

840.89 + 928 = 1768.89.

Answer:

1,768.89

Step-by-step explanation:

this is your answer

D = c-s/n

Dn = n(c-s/n)

Dn = c - s

Dn + s = c

c = Dn +s

To solve for c in the equation D=c-s/n, isolate c by multiplying both sides by n, then rearrange the terms and divide by (n-D).

To solve for c in the equation D=c-s/n, we need to isolate c. We can start by multiplying both sides of the equation by n to eliminate the fraction:

nD=cn-(s/n)(n)

Simplifying further, we get:

nD=cn-s

Next, we can bring the term cn to the left side of the equation by subtracting cn from both sides:

nD-cn=-(cn-s)

Rearranging the terms, we have:

-cn+nD=-(cn-s)

Factoring out c from the left side, we get:

c(n-D)=cn-s

Finally, we can solve for c by dividing both sides of the equation by (n-D):

c=(cn-s)/(n-D)

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The ball starts on the ground and travels in a parabolic shape as it reaches a maximum height and then returns to the ground . Suppose further that the ball reaches its maximum height of 15 feet in 2.2 seconds .

the ball reaches its maximum height of 15 feet in 2.2 seconds .

The ball takes 2.2 seconds to reach the maximum height from the ground

Ball takes another 2.2 seconds to reach the ground from the maximum height

So 2.2+ 2.2 = 4.4 seconds

The ball will be in the air for 4.4 seconds

So the domain of g(x) is 0 to 4.4 seconds

[0,4.4] is the domain in interval form

Answer:

Modeling  with Quadratic Function

1. y=3x^2-2x+2

2.y=4x^2+5x-6

3.33x^2-24x+635,2,555

4. -0.507x^2+14.907x-36.131

5. 0<x<4.4

Step-by-step explanation: i made 100%

3.

1h - $50

xh - x · $50

f(x) = 50x

x = 6 → f(6) = (50)(6) = 300

Answer: $300.

7.

1DVD - $17.75

xDVD - x · 17.75

f(x) = 17.75x

x = 5 → f(5) = (17.75)(5) = 88.75

Answer: $88.75

The answer to question 34:

Let 'x' = pounds of gravel. The ratio of mulch to gravel is given 2 1/4 | 1 1/3. Which equals 9/4 | 4/3 = 27/16.

So the total gravel and much is equal to x + 27/16x = 172  

Solving for 'x'

43/16 x = 172    

x = 172 (16/43) = 64 pounds of gravel           Mulch = 27/16x = 64 (27/16)= 108 pounds

The answer to question 35:

A.) 1,080 beats per minute at rest and 1,500 beats per minute while running.

B.) 4,500 (while running) - 3,240 (at rest) = 1,260 more beats while running than at rest.

Hi Nicole,

Question 34:

2 1/4 pounds of mulch for every 1 1/3 pounds of gravel.

Gravel - 172 / 1 1/3 = 129

Mulch - 172 / 2 1/4 = 76.44444...

Question 35:

a. 18 beats in 15 seconds.

b. 25 beats in 10 seconds.

Part A:

Find beats per minute:

1 minute = 60 seconds

60 / 15 = 4

18 x 4 = 72

Answer - 72 beats per minute (Resting)

150 beats per minute (Running)

Part B:

72 times per minute resting

Find 25 times in 10 seconds in minutes,

1 minute = 60 seconds

60 / 10 = 6

25 x 6 = 150

So while running the friend has 150 beats per minute.

Find the number of beats in 3 minutes for both:

Resting:

72 x 3 = 216

216 beats in 3 minutes

Running:

150 x 3 = 450

450 beats in 3 minutes

Subtract:

450 - 216 = 234

Answer - Your friend's heart beat is 234 beats more in 3 minutes than at rest.

Hope This Helps!

No, it is not. I will show you:

-1 = x  and 2 = y

2 = -5(-1) + 7

2 is not equal to 12. I hope this is right!

Gotcha!

When graphing this equation, (-1,2) does NOT cross on the graph. If you're are look for "m", the answer would be -5. So no, (-1,2) is not a solution to y=-5x+7.

:-)

No soy español pero soy fluido, puedo ayudarte aunque

The answer would be $2,064 I believe. Hope this helps!

To answer this question, we pose the problem as follows:

It is known that there are 7 posters and between them there is 0.2 meters of separation, we also know that between the beginning of the corridor and the first poster of 0.2 meters, and between the last poster and the end of the corridor there is 0.2 meters from separation . That is, there is a total of 8 separations of 0.2 meters in the corridor.

This is the real length of the corridor occupied by the posters.

[tex]4.4-8(0.2)\\[/tex]

So, if we call x the length of the posters, we can write the following equation for x

[tex]x =\frac{4.4-8(0.2)}{7}\\[/tex]

[tex]x = 0.4 meters\\[/tex]

Then the length of the posters is 0.4 meters

x, y=25x+500

range = {500, 525, 550, 575, 600, 625}

For a given function we can define the domain as the set of the possible inputs of that function, and the range as the set of the possible outputs of that function.

We will find that the range is: {500, 525, 550, 575, 600, 625}

So, if for a given function f(x) we know that the domain is {x₁, x₂, ..., xₙ} then the range will be {f(x₁), ..., f(xₙ)}

Here we have the function:

y = f(x) = 25*x + 500

And we have the domain: {0, 1, 2, 3, 4, 5}

Then the values in the range are:

Thus the range is: {500, 525, 550, 575, 600, 625}

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Answer:

-9

Step-by-step explanation:

Since there's no = sign in your expression, it's not an equation and can't be "solved."  Perhaps you mean, "How do you combine the following?"

(6 - 2^3) - 3^2 + 2 can be evaluated as follows:

6 - 8 - 9 + 2, or -9

Divide 15 by 3.79 to get your answer.

[tex]\frac{15}{3.79} = 3.9[/tex]

The answer is 3.9 gallons, or you could round to 4.

Answer:

Step-by-step explanation:

The cooler holds 15 liters of water

Give: 1 gallon ≈ 3.79 liters

15 liters of water has how many gallons?

Cross multiplying gives approximately:

(15 × 1) ÷ 3.79 = 3.957783641 gallons = 4 gallons rounded up to nearest gallon.

The cooler holds about 4 gallons.

Answer:

B) each piece has 1/8 of 3 feet ribbon

Step-by-step explanation:

Given,

The total length of the ribbon = 3 feet,

Total number of pieces of the ribbon = 8,

If each piece has the same length,

So, the length of each piece

[tex]=\frac{\text{total length of the ribbon}}{\text{total pieces}}[/tex]

[tex]=\frac{3}{8}[/tex]

= 1/8 of 3 feet

Hence, OPTION B is correct.

The expression that I can make from this data is 55 x h = miles traveled

Answer:

The expression is 55 x h = miles traveled

Step-by-step explanation:

Answer:

10 * 10 = 100

20 * 10 = 200

30 * 40 = 1200

Step-by-step explanation:

Step 1: In both the factors, we have zeros. for example, multiplying 20 and 10, we get 200.

Step 2: Since there are two zeros (adding zeros in multiple), therefore, in the result we get 2 zeros

More examples:

10 * 200 = 2000, there are 3 zeros (1 +2 = 3 zeros)

200 * 200 = 40000, there 4 zeros ( 2+2 = 4)

Hope this will help you understand the concept.

When multiplying two multiples of 10, the number of zeros in the product equals the sum of the zeros in the factors. This is due to each zero representing a power of ten. The product in a multiplication of multiples of 10 will have a number of zeros that matches the combined number of zeros in the factors.

When both factors in a multiplication problem are multiples of 10, the result is a number with a zero for each zero in each factor.

This is because each zero represents a power of ten, and when we multiply by 10, we are increasing the power of ten.

For example, if we have two factors, 30 and 40 (which are multiples of 10), the product would be 1200. In this case, 30 has one zero and 40 has one zero, so the product, 1200, has two zeros.

The rule can also be applied to larger multiples of 10.

For instance, if we multiply 200 by 4000, the product would: 200 (two zeros) x 4000 (three zeros) equals 800,000 (five zeros).

The total number of zeros in the product equals the sum of the zeros in the factors.

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The true statement regarding Galen's work are:

A conditional statement is a logical statement that consists of an "if" clause (hypothesis) and a "then" clause (conclusion), where the "if" clause specifies a condition and the "then" clause indicates a result that follows if the condition is met.

Galen's statement:

"If the sum of the digits in a number is divisible by 3, the original number is divisible by 3."

Let's analyze the components of the statement:

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32/2 if im ring tell me pls

Answer:

Total length of ribbon to line the long sides will be 22 in

Step-by-step explanation:

In the given figure of kite if we draw a line "h" vertically will form two right angle triangles.

Then by applying Pythagoras theorem in both the triangles.

h²= (3x + 5)² + (2x + 1)² ------(1)

h²= (5x + 1)² + 5² ------(2)

By equating both the equations

(3x + 5)² + (2x + 1)² = (5x + 1)² + 25

9x² + 25 + 30x + 4x² + 4x + 1 = 25x² + 10x + 1 + 25

13x² + 34x + 26 = 25x² + 10x + 26

13x² - 25x² + 34x - 10x + 26 - 26 = 0

- 12x² + 24x = 0

12x² - 24x = 0

x² - 2x = 0

x(x - 2) = 0

x = 2

Now we will put x = 2 in the measure of sides of the kite.

Side 1 = (3x + 5)

          = 3×2 + 5

          = 11

Side 2 = (5x + 1)

          = 5×2 + 1

          = 11

Side 3 = (2x + 1)

          = 2×2 + 1

          = 5

Therefore, Total length of ribbon to line the long sides will be = 11 + 11

= 22 in.

Your answer will be D-22.

[tex]Solution, \left(\frac{w^{15}}{w^5}\right)^4=w^{40}[/tex]

[tex]Steps:[/tex]

[tex]\left(\frac{w^{15}}{w^5}\right)^4[/tex]

[tex]\frac{w^{15}}{w^5}=w^{10}, =\left(w^{10}\right)^4[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \left(a^b\right)^c=a^{bc}, =w^{10\cdot \:4}[/tex]

[tex]\mathrm{Refine}=w^{40}[/tex]

[tex]\mathrm{The\:Correct\:Answer\:is\:w^4^0}[/tex]

[tex]\mathrm{Hope\:This\:Helps!!!}[/tex]

[tex]\mathrm{-Austint1414}[/tex]

Answer:

for this equation, it equals w^40

Step-by-step explanation:

I took the test already :)

x = 8.

3x-14=x+2

   +14   +14

3x = x + 16

-x    -x

2x = 16

Which equals 8 divided.

So x = 8.

3x - 14 = x + 2

-x         -x      

2x - 14 =      2

     +14       +14

2x       =      16

[tex]\frac{2x}{2}[/tex]        =    [tex]\frac{16}{2}[/tex]

 x        =     8

Answer: x = 8

Answer:

The solution to 2 ln x = 4 ln 2 is x = ±4

Step-by-step explanation:

We have 2 ln x = 4 ln 2

[tex]nlogx\texttt{ can be written as }logx^n[/tex]

So we have

           2 ln x = 4 ln 2

              ln x² = ln 2⁴

Comparing both sides we have

             x² = 2⁴ = 16

             x = ±4

The solution to 2 ln x = 4 ln 2 is x = ±4

Answer:

4

Step-by-step explanation:

Tom has $252, Hans has $93 and Charmaine still has $84.

1 blue square on drawing is length 1/4 in but that means 4ft in reality.

so one blue square area correspongs to 4x4 = 16 square feet.

(a) there 6 tiles for the batrhroom = 6x16 sq.ft = 96 sq.ft and the cost will be $480

(b) bedroom + living area = 7x8-8 tiles = 48 tiles = 48 x 16 sq.ft. = 768 sq.ft = 85.33 sq. yards. So the cost will be 85.33*18=$1535.94

(c) unit cost for tile: $5/sq.ft

unit cost for carpet: $1535.94/768sq.ft = $2/sq.ft

The tile has a greater unit cost ($5 per sq.ft) than carpet ($2 per sq.ft)

The exact costs for tiling and carpeting cannot be determined without the dimensions of the rooms. However, converting square inches to square feet or yards allows for cost calculation. Generally, tile has a greater unit cost than carpet when both are compared per square foot.

Unfortunately, we cannot provide exact costs for tiling the bathroom or carpeting the bedroom and living room as the dimensions of these rooms are not provided. However, once you have total area in square inches, you can convert it into square feet or square yard by knowing that 1 square foot is 144 square inches and 1 square yard is 1296 square inches. After converting, you can then multiply the areas by the respective unit costs of the ceramic tile and the carpet to get the total costs.

For the unit cost comparison, generally, carpet is sold by square yard and tile is sold by square foot. To make an accurate comparison, we need to convert the price of carpet from per yard to per foot by dividing it by 9 (since 1 square yard = 9 square feet). If, for example, the carpet cost is $18 per square yard, this would equate to $2 per square foot. Comparing this to the tile cost of $5 per square foot, you can see that the tile has a greater unit cost.

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The 0 is needed as a placeholder between the decimal point and the hundredths' digit. For numbers between 0.1 and 0.2, there is a 1 in the tenths' place: 0.11, 0.12, 0.13, and so on. For numbers between 0.2 and 0.3, there is a 2 in the tenths' place: 0.21, 0.22, 0.23, and so forth.

The midpoint of 0.1 and 0.2 is 0.15.

The midpoint of a line segment is a point that lies halfway between 2 points. The midpoint is the same distance from each endpoint.

To find the midpoint we just have to add both the numbers and then divide by 2.

So, midpoint be,

= (0.1+0.2)/2

=0.3/2

=0.15

Thus the midpoint of 0.1 and 0.2 is 0.15.

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Total hours is given as 50

Hours skiing is given as 5.

Divide hours skiing by total hours:

5 /50 = 0.1

Multiply that by 100 to get the percent:

0.1 x 100 = 10%

Answer:  

 2            

 — = 0.40000  aka 0.4

 5          

I will try my best to assist you with your question!

1.9 + -1.5= 1.9-1.5

1.9-1.5=0.4

The answer is 0.4

Hope I helped!

Good Luck!

22.4 is the answer.

cal used

Answer:

6√14 I think

Step-by-step explanation: