1. 2.5x + 100 = 600
2. 10 = 2x - 4
3. 2x + 5 = 30

Answers

Answer 1

Answer:

1) 200 2) 7 3) 12.5

Step-by-step explanation:

For god's sake, use a calculator


Related Questions

7 1/3 in its simplest form

Answers

Answer:

7 1/3

Step-by-step explanation:

7 1/3 is the simplest form, since you can't divide it anymore. However, if you're talking about improper fractions, then it would be 22/3.

Answer:

[tex]\frac{22}{3}[/tex]

Step-by-step explanation:

Change 7 1/3 into a mixed number: 7 × 3 = 21, 21 + 1 = 22Put 22 over 3:[tex]\frac{22}{3}[/tex]


Find the solutions of the quadratic equation 3x2 - 4x + 4 = 0

Answers

Answer:

            No real solution

Step-by-step explanation:

[tex]3x^2-4x+4=0\quad\implies\quad a=3\,,\quad b=-4\,,\quad c=4\\\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}\\\\x=\dfrac{-(-4)\pm\sqrt{(-4)^2-4\cdot3\cdot4}}{2\cdot3}=\dfrac{4\pm\sqrt{-32}}{6}[/tex]

There is no solution in real number as it's no real √[-32]

{solutins in complex numbers would be: [tex]x_1=\frac{4+4\sqrt{2}\,i}{6}=\frac{2+2\sqrt{2}\,i}{3}\\ x_2=\frac{2-2\sqrt{2}\,i}{3}[/tex] }

need help with these questions

Answers

Answer:

for question no 4

answer is 53

for question no 5

answer is -10

#4
[9(7-3)+13] - [11-(6+9)]
[9(4)+13] - [11-15]
[36+13] - [-4]
49- (-4)
49+4
ANSWER 53

#5
-4+(2-5)+[-(-3)]
-4+(-3)+3
ANSWER -4

20 POINTS !!!

Find the distance between the points (3,-4) and (5, 4)

Answers

Answer:

[tex]d=2\sqrt{17}\approx8.2462[/tex]

Step-by-step explanation:

To find the distance between two points, use the distance formula.

The distance formula is:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

Let (3,-4) be x₁ and y₁ and let (5,4) be x₂ and y₂. Therefore:

[tex]d=\sqrt{(5-3)^2+(4--4)^2[/tex]

Simplify:

[tex]d=\sqrt{(2)^2+(8)^2[/tex]

Square:

[tex]d=\sqrt{4+64}[/tex]

Add:

[tex]d=\sqrt{68}[/tex]

Simplify:

[tex]d=\sqrt{4\cdot17}=\sqrt4\cdot\sqrt{17}[/tex]

Simplify:

[tex]d=2\sqrt{17}\approx8.2462[/tex]

Answer:

[tex]\boxed{2\sqrt{17}}[/tex]

Step-by-step explanation:

To find the distance between two points, we use the distance formula. The distance formula is:

[tex]\boxed{d=\sqrt{(x_{2}-x_{1})^{2}+({y_{2}-y_{1})^{2}}}}[/tex]

Therefore, we can label our coordinate pairs and solve for d.

Because we are given two coordinate pairs, we will follow the standard naming system for coordinate pairs. This is [tex](x_{1}, y_{1}) \text \: {and} \: (x_{2}, y_{2})[/tex]. Therefore, we can implement the distance formula and solve.

[tex]\sqrt{(5-3)^{2}+(4-(-4))^{2}}\\\\\sqrt{(2)^{2}+(8)^{2}}\\\\\sqrt{4 + 64} \\\\\sqrt{68} \\\\\boxed{2\sqrt{17} }[/tex]

terry ate 4 less cookies than jack. alvin ate four times as many cookies as terry. if x represents the number if cookies that jake ate, what could represent the number of cookies that alvin ate ?

Answers

Answer:

Alivin= 4(x-4)

Step-by-step explanation:

Example of a function and why?

Answers

Answer:

f(x) = x + 2

Step-by-step explanation:

If we graph x + 2, we can see that it passes the Vertical Line Test. Each x-value only has 1 y-value.

What is the numerical value of 123.45

Answers

123.45 = 12345 × 10−^2

Answer:

12345([tex]10^{-2}[/tex])

Step-by-step explanation:

To do this you would just multiply 123.45 by 100 so you have no decimals and you would get 12345 and then since is goes up by 100 you would get [tex]10^{-2}[/tex] because you would take 2 decimal places from that so you would get

12345([tex]10^{-2}[/tex]) as your answer

karen has 120. if she saves 24 per week, how many weeks will it take her to have a total of 312

Answers

Answer:

13 weeks

Step-by-step explanation:

312/24=13

What’s the value of 5•5•5•5•5•5•5•5

Answers

Answer:

390625 or it could be 5⁸

Step-by-step explanation:

It could be either of those depending on the answer needed

Answer: is this about exponents. if yes then its 5 to the eighth power

Step-by-step explanation:

1/4 (12x - 20) = -70

Answers

Divide each term in the bracket by 4:

=  

3

x

2

Explanation:

Multiplying by  

1

4

is the same as dividing by 4. - You are finding a quarter of something.

To find a quarter of the bracket, divide each coefficient by 4.

You will get two unlike terms so you will not be able to simplify them.

This is the reason why you cannot simplify inside the original bracket either.

Step-by-step explanation:

Which of the following is the correct formula for distance?(1 point) d=(x2−x1)+(y2−y1)−−−−−−−−−−−−−−−−−√, where d is the distance between points (x1,y1) and (x2,y2). d=(x2+x1)2+(y2+y1)2−−−−−−−−−−−−−−−−−−√, where d is the distance between points (x1,y1) and (x2,y2). d=(x2−x1)2+(y2−y1)2, where d is the distance between points (x1,y1) and (x2,y2). d=(x2−x1)2+(y2−y1)2−−−−−−−−−−−−−−−−−−√, where d is the distance between points (x1,y1) and

Answers

Answer:

[tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step-by-step explanation:

Help please how do I solve for k

Answers

I need to see the rest to solve the k but I know that the direct is 50. is there any other part to it so I can solve it

3 out of 4 divided by 1 out of 16 fraction

Answers

Answer:

12

Step-by-step explanation:

Given

[tex]\frac{3}4}[/tex] ÷ [tex]\frac{1}{16}[/tex]

Leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

[tex]\frac{3}{4}[/tex] × [tex]\frac{16}{1}[/tex] ← cancel 4 and 16 by 4

= [tex]\frac{3}{1}[/tex] × [tex]\frac{4}{1}[/tex] = [tex]\frac{4(3)}{1(1)}[/tex] = [tex]\frac{12}{1}[/tex] = 12

Simplify: 3x2 - 4x - 5x2 + 8x A) -2x2 - 12x B) -2x2 + 4x C) -2x2 + 12x D) 8x2 - 12x

Answers

Answer:

3x^2-4x-5x^2+8x.

which is collect like terms.

3x^2-5x^2-4x+8x.

-2x^2+4x.

The answer is option B

what are the variables of 3a2bc

Answers

Step-by-step explanation:

is there a picture to the question it would help with the question

help due soon......​

Answers

Answer:

Step-by-step explanation:

let x=1.8888...

 10x=18.8888...

10x-x=18.8888...- 1.8888...

  9x=17

    x=17/9

So 1.8888... is equal to 17/9

Answer:

1,888 is equal [tex]\frac{17}{9}[/tex]

Step-by-step explanation:

x = 1,888...

10x = 18,88...

10x - x = 18,88 - 1,88

9x = 17

x = [tex]\frac{17}{9}[/tex]

Can you please help me so I can get a better understanding? h(n)=3n, Find h(6)

Answers

Answer:

18

Step-by-step explanation:

So we have the function:

[tex]h(n)=3n[/tex]

And we want to find h(6).

To do so, simply substitute 6 for n. In other words:

[tex]h(n)=3n\\h(6)=3(6)[/tex]

Multiply:

[tex]h(6)=18[/tex]

So, our answer is 18 :)

Answer:

h(6) = 18

Step-by-step explanation:

To evaluate h(6), substitute n = 6 into h(n) , that is

h(6) = 3(6) = 18

Which input value produces the same output value for the two functions on the graph? x = −1 x = 0 x = 3 x = 4

Answers

we know that
The intersection point of both graphs is a common point for both functions, for which for the same input value, both functions will have the same output value.
so
the point of intersection is
for an input value equal to
the output value for both functions is
therefore
the answer is the option
X= 4

Answer:

D. x=4 did the test on edge

Step-by-step explanation:

2x / 2x is equals to?​

Answers

It’s equal to 1

2x divide by 2x = 1
— —
2x divide by 2x 1

which equals to 1

which one is a irrational number and why ?

Answers

Answer: Option A, the square root of 40, is an irrational number.

Step-by-step explanation:

We are given 4 options:

- the sqrt of 40

- the sqrt of 49

- the sqrt of 100

- the sqrt of 9

All but one are perfect squares. Let's find out which one is not a perfect square.

The sqrt of 49 is 7. 7 times 7 is equal to 49.

The sqrt of 100 is 10. 10 times itself is equal to 100.

The sqrt of 9 is 3. 3 times 3 is equal to 9.

What about the square root of 40?

We know it's not a perfect square, and it's somewhere between 6 and 7. So, the hint from the question tells us that imperfect squares are irrational. Then this must be the answer!

Answer:

A. √40

Step-by-step explanation:

√49 = 7

√100 = 10

√9 = 3

but,

√40 = 6.32455532, so this is immperfect square

Please help me check my work. Question: A square field has an area of 479 ft². What is the approximate length of a side of the field? Give your answer to the nearest foot. My answer: 22. This is because the square root of 479 is 21.88606862823929. So the answer would be about 22.

Answers

yeah this is just about right

7. M is between L and N. LN=365 & ML=73. What is the value of MN?

Answers

Answer:

MN = 292

Step-by-step explanation:

Given that M is between L and N then

MN = LN - ML = 365 - 73 = 292

A cylinder has a height of 20cm. The diameter of the cylinder is 3 10 its height. Calculate the volume of the cylinder in terms of π.

Answers

it would be 13.96 for the volume

Which expression is equivalent to 2(m − 5) + 6?

Answers

Answer:

2m-4

Step-by-step explanation:

Answer:

2m-4

Step-by-step explanation:

12 14 22 14 18 23 42 13 9 19 22 14
what is the mean

Answers

Answer: 18.5

Step-by-step explanation:

The way to find the mean of a data set is to add up all the values and then divide by the number of data points.

First add up all of the values. 12+14+22+14+18+23+42+13+9+19+22+14=222.

Now count how many data points there are. There are 12 data points.

Finally, divide the sum you got by the number of data points. 222/12=18.5

please answer please!!!! Will mark brainliest for complete answer. -the first photo is to calculate the area. Just question number 7 a and b i). And question number 8.

Answers

Triangle:
Area = 1/2*b*h
= (1/2)*3*4
= 3*2
= 6 m^2


7a.
1cm^3
Or, 1cm * 1cm * 1cm
Or, 10mm * 10 mm * 10 mm
Or, 1000 mm^3

7b.i)
10 cm^3
Or, 10cm * 1cm* 1cm
Or, 100mm * 10mm * 10mm
Or, 10000 mm^3

8.)
Volume = 50 cm^3
Base area= 5 cm^2
Now,
Volume = area * height
Or, 50 = 5 * height
Or, height = 50/5
Or, height = 10 cm

Plz mark this as the brainiest. :)

4b+4<4(5-3b) how do u break this down to get the right answer​

Answers

4b+4<20-12b

16b<16

b<1 olur.

İYİ DERSLER!

Answer:

See answer in the image below.

PLEASE HELP ME I NEED THIS BY TONIGHT!!!! Ed Moura has $85000 invested in stocks paying 5%. How much additional money should he invest in certificates of depositing paying 2% so that the average return on the two investments is 3%?

Answers

Answer:

$170,000

Step-by-step explanation:

(1.05(85000))+1.02x=1.03(85000)+1.03y

honestly not sure but it's the best I got

How do you find a line tangent to another line?

Answers

Answer:

Step-by-step explanation:

1) Find the first derivative of f(x). 2) Plug x value of the indicated point into f '(x) to find the slope at x. 3) Plug x value into f(x) to find the y coordinate of the tangent point. 4) Combine the slope from step 2 and point from step 3 using the point-slope formula to find the equation for the tangent line.

Of you add 7 to 3 times the no. you will get 31 . What are the two no.

Answers

the no. is 8.

31 - 7 = 24

3 x 8 = 24

Answer:

8

Step-by-step explanation:

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