20 points and brainliest.

Answer:

1no

125

2no

12.9

hope that this will help u

Answer:

Number 1 is 0.3

Number 2 is is choice 2

Answer:

242

Step-by-step explanation:

165 ÷ 15 = 110

110 × 2.2 = 242

The distance that trains travel in 2.2 hours with the same ratio or same speed will be 242 km.

The ratio is the division of the two numbers.

For example, a/b, where a will be the numerator and b will be the denominator.

Proportion is the relation of a variable with another. It could be direct or inverse.

As per the given,

A train covers 165 km in 1.5 hours.

The ratio of distance covered to the number of hours is 165/1.5.

Let's say in 2.2-hour train travel x number of km.

The ratio of distance covered to the number of hours x/2.2

Both ratios must be the same,

x/2.2 = 165/1.5

x = 110 x 2.2 = 242 km

Hence "The distance that trains travel in 2.2 hours with the same ratio or same speed will be 242 km".

For more information about ratios and proportions,

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Answer:

35 cents per apple

Step-by-step explanation:

its 7 / 20 and you get 0.35

Answer:

Slope, b = 1.38 ; intercept, a = - 0.56 ;

Y = - 0.56 + 1.38x

Step-by-step explanation:

Given that :

xbar = 12

ybar = 16

r = .46

Sy = 18

Sx = 6

The equation of a line can be expressed as :

Y = a + bx

Where ;

a = intercept ; b = slope ; x = independent variable ; y = dependent variable

The slope b ; can be obtained using the relation :

b = r(Sy / Sx)

= 0.46(18/6)

= 0.46(3)

= 1.38

The intercept a, can be obtained using the relation :

Ybar - b(Xbar)

16 - 1.38(12)

16 - 16.56

a = - 0.56

Hence ;

Slope, b = 1.38 ; intercept, a = - 0.56

Th equation of the line will be :

Y = - 0.56 + 1.38x

Answer:

Step 3: He should have divided both sides by −7

Step-by-step explanation:

Incorrect calculation

−7x + 25 = 48

Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23

Step 3: negative seven times x over seven = twenty-three over seven

-7*x/7 = 23/7

-7x/7 = 23/7

Step 4: x = twenty-three over seven

Correct calculation

−7x + 25 = 48

Step 1: −7x + 25 − 25 = 48 − 25 Step 2: −7x = 23

Step 3: negative seven times x over seven = twenty-three over seven

-7*x/-7 = 23/-7

-7x/-7 = 23/-7

Step 4: x = twenty-three over negative seven

x = -23/7

Answer:

-6 is the x-coordinate value

Step-by-step explanation:

Mathematically, slope can be calculated as;

m = (y2-y1)/(x2-x1)

For the value of the slope to be undefined, it means that we are actually dividing by zero

For us to be dividing by zero, it actually means that there is no change in the x-value

The unchanging x-value is what has caused us to have an undefined slope value

Since line k and line g are parallel, their slopes are equal and the slope of k is undefined too

So the x-coordinates of the other points that lie on the line that we used in calculating the slope is -6

Answer: y=1/3x+1

Y needs to be changed in order to maintain parallelism.

Good Luck!

Answer:

The answer is y=1/3x+1

Step-by-step explanation:

y=mx+b

m=1/3

y-y=m(x-x1)

y-2=1/3(x-3)

y-2= 1/3x-1

+2 +2

y=1/3x+1

Answer:

4√10

     5

Step-by-step explanation:

Answer:

Sorry I know the answer but it won't let me type it the right way

Step-by-step explanation:

Answer:

m                        

Step-by-step explanation:

                                              m

Answer:

There were 140 robberies in Springfield in 2012.

Step-by-step explanation:

Let's marked (named) robberies in 2012 with x, which is worth 100%

196 robberies in 2013 worth 100% + 40% = 140%

Now we will make proportion

x : 196 = 100 : 140

When we multiply external and internal members we get

140 x = 196 · 100 => 140 x = 19600 => x = 19600/140 = 140

x = 140 robberies in 2012

Hi!

I'm assuming the question means what integers, so let's figure it out.

Starting from 12, 12 squared is 144, or the square root of 144 is 12.

13 squared is 169, or the square root of 169 is 13.

14 squared is 196, or the square root of 196 is 14.

15 squared is 225, or the square root of 225 is 15.

Based on that list of numbers, we can determine that the square root of 199 lies between the square root of 196 and the square root of 225 -- aka 14 and 15.

Answer:

The correct answer is B or option 2.

9514 1404 393

Answer:

  D. $40 with 25% discount

Step-by-step explanation:

All of the options have 8% sales tax, so that is not important to choosing the best deal.

The store with the lowest price after discount is D (local shoe store #2), as the discount brings the price down to $30 before tax.

The price at store C (local shoe store #1) will be 15% less than $38.00, so about $5.70 less. That is not as low a price as at store D.

The best buy is had at store D.

__

In the spreadsheet, we have multiplied the base price by (1+discount) then added shipping. That total is multiplied by (1+tax rate).

Answer:

29

Step-by-step explanation:

(x+12) + 100 + x = 180

           2x + 112 = 180

Subtract 112 from both sides

                    2x = 58

Divide 2 from both sides

                      x = 29

Answer:

x² + 5x + 6 = 0

Step-by-step explanation:

The zeros of quadratic function is (- 3) and (- 2)

The coordinates of vertex are (- 2.5, -0.25)  

(x + 3)(x + 2) = 0

x² + 5x + 6 = 0

Answer:

Yes, y = .08x

Step-by-step explanation:

Yes, because if you divide 2.56 by 32 you get .08.

If you multiply .08*6 = .48.

The equation would be y = .08x

If y is the cost and x is the amount of yogurt then this equation makes sense.

Check 32oz

y = .08(32)

y = 2.56

Hope this helps ya!!

The answers would be z + w = -2 + 3i, z - w = 4 - 7i, and w - z = 4 + 7i after adding and subtracting two complex numbers.

It is defined as the number which can be written as x+iy where x is the real number or real part of the complex number and y is the imaginary part of the complex number and i is the iota which is nothing but a square root of -1.

It is given that:

The complex numbers are:

z = 1 - 2i and w = -3 + 5i

z + w = 1 - 2i - 3 + 5i

z + w = -2 + 3i

z - w = 1 - 2i + 3 - 5i

z - w = 4 - 7i

w - z = 4 + 7i

Thus, the answers would be z + w = -2 + 3i, z - w = 4 - 7i, and w - z = 4 + 7i after adding and subtracting two complex numbers.

Learn more about the complex number here:

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Answer:

3

4

7

Step-by-step explanation:

got it right on edge

Answer:

sry

Step-by-step explanation:

i am new to this

174 i think

Answer:

174

Step-by-step explanation:

Answer:

A) 2

B)109

c) 4

d)71

I'm a hundred percent sure

Step-by-step explanation:

Draw the Venn diagram

Answer:

negative

Step-by-step explanation:

Positive numbers do not change the polarity of a number in multiplication, only negative numbers.

Answer: The maximum distance is 6 km

Step-by-step explanation:Let

d-----> represent the distance in kilometer

we know that

------> inequality that represent the situation

Solve for d

Answer:

the answer is -25

Step-by-step explanation:

the answer is -25

Answer:

In standard form 0.0325 is written as 0.0325

In scientific notation it is written as:

[tex]3.25^{ - 2} [/tex]

The standard form of 0.0325 is written as

[tex] = 3.25 \times {10}^{ - 2} [/tex]

Given:

0.0325

Writing in standard form means writing in scientific notation (power of be 10)

0.0325

The decimal point will be moved 2 times before it gets between the be significant value of 3 and 2

Therefore,

0.0325

[tex] = 3.25 \times {10}^{ - 2} [/tex]

Read more:

https://brainly.com/question/1766663

Answer:

-2

Step-by-step explanation:

So to find slope you just subtract y^1 - y^2 and divide it by x^1 - x^2

The first point is (2, 1)

The second is (0, 5)

1 is our y^1 and 5 is our y^2

1 - 5 = -4

2 is our x^1 and 0 is our x^2

2 - 0 = 2

So our slope is -4/2, reduced its -2

I hope this helped, please mark Brainliest, thank you!

Answer:

4

Step-by-step explanation:

Given that:

Number of beads used to make 4 bracelets = 16

Number of bracelets made = [tex]y[/tex]

Number of beads used = [tex]x[/tex]

To find:

The constant of proportionality = ?

Solution:

Number of bracelets made is proportional to Number of beads.

i.e.

[tex]y \propto x[/tex]

OR

[tex]y=k\times x[/tex]

Where [tex]k[/tex] is the constant of proportionality.

We are given that:

when [tex]x = 12, y = 4[/tex]

Putting the values in the above equation:

[tex]4 = k \times 16\\\Rightarrow \bold{k = 4}[/tex]

Therefore, the constant of proportionality is 4.

Answer:

What are you suppose to be finding? I am confused finding the value of x??

Step-by-step explanation: