What two numbers multiplied give you 100 and added give you 21?

The ratio of r-32 to r-125 is 3:2

A ratio in math displays how many times one number is contained in another. Comparing two numbers by dividing them is how ratios work. Your formula would be A/B if you were contrasting one data point (A) with another data point (B). When both sides of a ratio are whole numbers and cannot be divided by a whole number, the ratio is in its simplest form.

Given,

Refrigerant r-32 and r-125 are the two main constituents of refrigerant r-410.

60 pounds of r-32 and 40 pounds of  r-125 make up to 100 pounds of r-410.

The ratio of r-32 to r-125 = 60/40 =3/2.

Hence, the required ratio of r-32 to r-125 is 3:2

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Reason:

The diagram describes values between -1 and 3. We exclude -1 because of the open hole. We include 3 because of the closed endpoint.

Answer:

You would do 9 x 3 first.

Step-by-step explanation:

PEMDAS. There is subtraction and multiplication, and multiplication is before subtraction.

P- Parenthesis

E- Exponent

M- Multiplication

D- Division

A- Addition

S- Subtraction

 Hope this helps!!! 〜(￣▽￣〜)

EXPLANATION

Since the initial amount of money was of $29,820, and the account earns interest rate by a reason of 7% per year, we can use the simple interest rate equation as shown as follows:

Where P=Principal= 29,820, r=rate in decimal form=7/100=0.07 , t=time in years=4,

Plugging in the numbers into the expression:

Multiplying numbers:

Adding the Interest to the Initial Capital: 29,820+8,349 = 38,169

In conclusion, Colin will have $38,169 after 4 years

Answer:

I'll do #17 as an example of how to do the others. #15 doesn't make sense.  What is "= ≤⁄x?"

Step-by-step explanation:

17. (-3, 2); y=-4

y=4 is a horizontal line, where all values of y are 4, regardless of x.  A horizontal line has a slope of 0.  [Y does not depend on x].

That leaves us with y =0x + b

For this line to go through point (-3,2), it would have to have a y-intercept (b) of 2 [b is the value of y when x=0].  Since y=0 regardless of x, b must be 2.

The parallel line that goes through (-3,2) is:

y = 0*x + 2, or

y = 2

       The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller).

Below is a scale illustration of the Colombian flag that ranges from 1 cm to 2 ft.

         It is already stated that all measurements would be done using a fixed scale for a given scale drawing. Let the scale, for illustration, be K feet to s inches.

1ft ; s/k in

Thus, all foot measures will be multiplied by s/k to obtain the relevant lengths in the drawing.

Since the ratio is 2:1, there are 1 centimeter for every 2 feet.

This indicates that to reach 33, we must divide 66 by 2.

66/2 = 3

As a result, the scale drawing of the Colombian flag is attached below and has a scale of 1 cm to 2 ft.

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The minutes will it be until they complete a lap at the same time is 2.4 minutes

From the information, Lana can walk around the track in 4 minutes and Raul can walk around the track in 6 minutes.

Lana will cover a distance of 1/4 while Raul will be represented as 1/6.

This will be illustrated as:

1/4 + 1/6 = 1

3/12 + 2/12 = 1

5x/12 = 1

Cross multiply

5x = 12

x = 12/5

x = 2.4 minutes

Note that x = number of minutes

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Answer:

10.736

Step-by-step explanation:

11 1/9 - 3/8 =10/53/72

= 10.736

7 + 7 + 7 + 7 + 7​ means 7 is added 5 times

It could be written as

5(7)

7 x 5 and

7 . 5

But it can not be written as 7^5 because 7^5 means 7 x 7 x 7 x 7 x 7

Hence, 7^5 does not represent the expression 7 + 7 + 7 + 7 + 7​

This makes the correct option to be the third option. That is 7^5

Let the rectangle with side as x and y.

Determine the area of the rectangle.

The sides of the rectangle is increased by twice means that new sides are 2x and 2y.

Determine the area of new rectangle.

So new area is four times the previous rectangle.

Thus correct answer is option A quadruples.

33,800,000 are total distinct six characters license plates possible such that the two letters must appear next to each other. We can solve it by using combination formula ( ⁿCr ) .

Total number of digits are 10 i.e., 0,1,2,3,4,5,6,7,8,9. We have given the option to select any four digits out of 10 with repetition. So, we use combination formula

ⁿ C r = n!/(r! ×(n-r)! )

For 1ˢᵗ digit, the number ways to choose the 1ˢᵗ digit is ¹⁰C ₁= 10

For 1ˢᵗ letter, the number of ways to choose the 1ˢᵗ letter is ²⁶C ₁= 26

There are 10×10×10×10 = 10⁴ ways to choose four digits . In a similar way, the total number of letters for choice is 26 ; i.e., from A to Z. We were given the task of choosing two letters from a list of 26 , which were not necessarily distinct .

There are 26×26 = 26²ways to choose the two letters . For the letters to be next to each other, they can be the 1ˢᵗ and 2ⁿᵈ, 2ⁿᵈand 3ʳᵈ, 3ʳᵈand 4ᵗʰ, 4ᵗʰand 5ᵗʰ, 5ᵗʰ and 6ᵗʰ characters . So, there are 6-1 = 5 are choices for the positions of the letters .

Therefore, numbers of distinct license plates is 5×10⁴× 26² = 33,800,000

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Answer:

The answer for the question is = -18.6y - 64.8

Answer:

2^9

Step-by-step explanation:

8 is [tex]2^3\\[/tex], so we can replace [tex]8^3[/tex] for [tex](2^3)^3[/tex]

Exponents separated by parenthesis, multiply.

So [tex](2^3)^3=2^9[/tex]

Answer: A z=9

Step-by-step explanation:

Answer:

z = 12

Step-by-step explanation:

To understand the equation, you must first know that m∠a = 108°. It equals that because a regular five-sided polygon has an interior angle of 108° each.

Next, you would want to group all constants to the right side of the equation. By doing so, you want to subtract 72 from both sides.

(3z + 72) - 72 = 108 - 72

3z = 36

Lastly, you want to isolate the z by dividing 36 by 3.

z = 36 ÷ 3

z = 12

Answer:

65

Step-by-step explanation:

First find the area of the triangles

a*b/2 is the equation for triangles

5*6/2 is 15

multiply 15*2 because there are two triangles

15*2=30

Now find the area of the rectangle

5*7=35

Then add.

30+35=65

:)

Average rate of change is calculated using the slope of the line linking the interval's ends on the graph of the function. The average rate of change, in simplest form, is -1/6.

It is the average amount by which the function changed per unit throughout that time period. It is calculated using the slope of the line linking the interval's ends on the graph of the function.

The formula for calculating the gradient of a function exists expressed as:

[tex]$m=\frac{d y}{d x}=\frac{y_2-y_1}{x_2-x_1}[/tex]

Using the coordinate points from the table (6, 53) and (24, 50).

Substitute the coordinate into the expression:

[tex]$m=\frac{50-53}{24-6} \\[/tex]

[tex]$&m=\frac{-1}{6} \\[/tex]

Therefore, the average rate of change, in simplest form is -1/6.

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EXPLANATION

If the equation is 2r+10=22

Subtracting -10 to both sides:

2r = 22 - 10

Subtracting numbers:

2r = 12

Dividing both sides by 2:

r = 12/2

Simplifying:

r=6

The answer is r=6

To answer this question, we need to apply the rules of "PEMDAS".

Thus:

- we first deal with the numbers in the "Parentheses" or brackets

- then we perform the "Multiplication" operation

- and then we perform the "Subtraction" operation

This is done as follows:

- by dealing with the numbers in the parentheses, we get:

- now, by dealing with the multiplication, we have:

- finally, we deal with the subtraction, as follows:

Ramones’s Chemistry test was much better as it has higher Z-Score than history

For History test, Test score (x) = 40

Mean (μₓ) = 30, Standard deviation (σₓ) = 10

For Chemistry test, Test score (Y) = 40

Mean (μ) =30, Standard deviation (σ) =5

Ramones’s Z-score for History test is given by,

Z-Score = (x-μₓ)/σₓ =(40-30)/10 = 1

Ramones’s Z-score for chemistry test is given by,

Z-Score = (y-μ)/σ =(40-30)/5 = 2

Thus, Ramones’s Chemistry test was much better, because Chemistry test has higher z-score.

Difference in the mean score (α) =μₓ -μ =0

Difference in Z-Score= Z- Zₓ =1

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After 10 years, the car will be worth 0.54 of the price when Rob purchases it. The result is obtained using the exponential depreciation equation.

The depreciation can be calculated by the exponential depreciation equation.

y = P (1 - r)ˣ

Where

If given

How much will the car be worth after 10 years?

The depreciation rate would be

r = 6%

r = 6/100

r = 0.06

So, after 10 years, the car would be worth

y = P (1 - r)ˣ

y = P (1 - 0.06)¹⁰

y = P (0.94)¹⁰

y = P (0.54)

y = 0.54P

Hence, after 10 years, the car will be worth 0.54 of its original price.

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Answer:

slope = [tex]\frac{1}{3}[/tex]

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

given

3x + y = 8  ( subtract 3x from both sides )

y = - 3x + 8 ← in slope- intercept form

with slope m = - 3

given a line with slope m then the slope of a line perpendicular to it is

[tex]m_{perpendicular}[/tex] = - [tex]\frac{1}{m}[/tex] = - [tex]\frac{1}{-3}[/tex] = [tex]\frac{1}{3}[/tex]

The coordinates of the dresser

i.e A(-1,-1), B(2,-1), C(2,1), D(-1,1)

after rotating the dresser 180 degrees about the origin, translating 2 units left and 3 units up becomes

A(3, 2), B(0, 2), C(0,0), D(3, 0)

It is the movement of the shape in the left, right, up, and down directions.

The translated shape will have the same shape and shape.

There is a positive value when translated to the right and up.

There is a negative value when translated to the left and down.

We have,

The coordinates of the vertices of the dresser.

A(-1,-1), B(2,-1), C(2,1), D(-1,1).

Now,

Rotating 180 degrees the coordinates become,

A(2, 1), B(-1, 1), C(-1, -1), D(2, -1)

Translating 2 units left.

The coordinates become:

A(2-2, 1-2), B(-1-2, 1-2), C(-1-2, -1-2), D(2-2, -1-2)

A(0, -1), B(-3, -1), C(-3, -3), D(0, -3)

Translating 3 units up.

The coordinates become:

A(0+3, -1+3), B(-3+3, -1+3), C(-3+3, -3+3), D(0+3, -3+3)

A(3, 2), B(0, 2), C(0,0), D(3, 0)

Thus,

The coordinates of the dresser

i.e A(-1,-1), B(2,-1), C(2,1), D(-1,1)

after rotating the dresser 180 degrees about the origin, translating 2 units left and 3 units up becomes

A(3, 2), B(0, 2), C(0,0), D(3, 0)

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In a right triangle, if the altitude drawn from the right angle to the hypotenuse divides the hypotenuse into two segments, the length of the altitude is the geometric mean of the lengths of the two segments.

According to this

Which is the fourth option.

The multiplication model represented by the image is given as follows:

12(4 x 10) + (3 x 10) + (6 x 10) + 18.

A multiplication operation is equivalent to consecutive additions.

For the green squares, the following addition is obtained:

10 + 10 + 10 + 10 + 6.

(which is the number of squares painted green).

Considering a multiplication with consecutive additions, it is written as follows:

4 x 10 + 6.

For the red squares, the expression is:

4 + 4 x 10 + 2 = 4 x 10 + 6.

For the blue squares, the expression is:

8 + 3 x 10 + 8

3 x 10 + 16

For the white squares, the expression is:

2 + 6 x 10

Hence the total model is calculated as follows:

4 x 10 + 6 + 4 x 10 + 6 + 3 x 10 + 16 + 2 + 6 x 10

(4 x 10)(6 + 6) + (3 x 10) + (6 x 10) + 18.

12(4 x 10) + (3 x 10) + (6 x 10) + 18.

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The perimeter of the polygon with the vertices is: 17.5 units.

The perimeter of a polygon is the sum of all the sides of the polygon. To find the perimeter of a polygon with coordinates given for its vertices, we have to apply the distance formula to find the length between each of the vertices of the polygon.

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

Given:

J(-5, 3)

K(-2, 1)

L(3, 4)

Find JK:

JK = √[(−2−(−5))² + (1−3)²]

JK = √13

JK = 3.6 units

Find KL:

KL = √[(−2−3)² + (1−4)²]

KL = √34

KL = 5.8 units

Find JL:

JL = √[(−5−3)² + (3−4)²]

JL = √65

JL = 8.1 units

Perimeter = 3.6 + 5.8 + 8.1

Perimeter = 17.5 units.

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Answer:

4:8

Step-by-step explanation:

Equivalent ratios have the same simplified ratio.

The simplified ratio of 3:6 is 1:2. We can get it by dividing both sides of the ratio by a common factor of 3.

18:9 is incorrect because its simplified ratio is 2:1. Equivalent ratios have the same order.

4:8 is correct because dividing both sides of the ratio by 4 gives us 1:2.

11:12 is incorrect because it can not be simplified to give 1:2.

Answer:y=-x+3

Step-by-step explanation:

The baker has 13/3 pounds of sugar.

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

We have been given two fractions.

The three containers have 3/4 pounds of sugar and fourth one have 1/2 pounds of sugar.

To find the total sugar, we have to add both the fractions

Total pounds of sugar = Sugar in three containers + sugar in fourth container

= 3/4 + 1/3

= (9 + 4)/3

= 13/3 pounds

So, the total sugar the baker has is 13/3 pounds.

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Answer: 198

Step-by-step explanation:

9 * 36 = 324

9 * 14 = 126

324 - 126 = 198

Hope this helps!