Select all ratios equivalent to 20:4 A. 8:1 B. 10:2 C. 15:3

Answer:

its wrong

Step-by-step explanation:

cause first of all i have no i dea second of all it looks to hard for me

Answer:

B

Step-by-step explanation:

We can divide both sides of the equation by 43 to solve for x:

90x / 43 - 47y / 43 = -49 / 43

x = -49/43

We can substitute this value for x back into either of the original equations to find y. Let's substitute it into the first equation:

-5x + 3y = -6

(-5 * -49/43) + 3y = -6

y = (-6 + 5 * 49/43) / 3

y = 17/43

The solution to the system of equations is (x, y) = (-49/43, 17/43).

To check our solution, we can substitute the values we found for x and y back into the original equations and see if they hold true.

In the first equation, -5x + 3y = -6, substituting the values we found for x and y gives us:

(-5 * -49/43) + (3 * 17/43) = -6

This simplifies to -6 = -6, which is true, so the solution holds for this equation.

In the second equation, 9x - 4y = 1, substituting the values we found for x and y gives us:

(9 * -49/43) - (4 * 17/43) = 1

This simplifies to -1 = -1, which is true, so the solution holds for this equation as well.

Therefore, the solution (x, y) = (-49/43, 17/43) is correct.

Answer: 897

Step-by-step explanation:

(465+235+286)-89= ?

(700 + 286)-89

986-89

897

Answer:

The standard form of a line is expressed as Ax + By = C, where A, B, and C are constants and x and y represent the variables. One advantage of using the standard form to graph a line is that it is relatively easy to determine the slope and y-intercept of the line from the constants A and B. This can be particularly useful when trying to analyze the behavior of the line.

Another advantage of using the standard form is that it allows you to easily determine the equation of the line when given a set of points. For example, if you are given the points (2,4) and (3,6), you can use the standard form to find the equation of the line that passes through these points by substituting the coordinates into the form and solving for the constants.

One potential disadvantage of using the standard form is that it can be more difficult to interpret the meaning of the constants A, B, and C in terms of the context of the problem. For example, if the line represents the cost of a product, it may be more intuitive to express the equation in terms of the variables x (the number of units) and y (the cost). In this case, it may be more useful to use the slope-intercept form of the equation, which is expressed as y = mx + b, where m is the slope and b is the y-intercept.

Step-by-step explanation:

https://www.math.net/standard-form

Step-by-step explanation:

I honestly think that - ' jphhendell13 ' is correct.

Answer:

D: y equals negative one-half x minus 2

Step-by-step explanation:

slope

The total line length of cubes lined up would be approximately 1.6 x 10^7 cm.

To find the total line length of cubes lined up, we need to find the total number of cubes in the box and then multiply it by the side length of a cube.

We can find the total number of cubes in the box by dividing the volume of the box by the volume of a cube:

Volume of the box = 2 m * 4 m * 8 m = 64 m³

Volume of a cube = 8 cm³ = 8 x 10^-6 m³ (converting the cm³ to m³)

Number of cubes = 64 m³ / 8 x 10^-6 m³ = 8 x 10^6

Then we can multiply the total number of cubes with the side length of a cube to find the total line length of cubes lined up :

Therefore, Line Length = 8 x 10^6 * 8 cm

= 6.4 x 10^7 cm

= 1.6 x 10^7 cm.

Learn more about arithmetic at,

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The lower quartile value is 13 and the upper quartile value is 27.

What is a Quartile?

A quartile divides the data set into four equal halves, that is, each set has an equal number of terms. The quartiles are given by Q₁(the lower quartile value), Q₂ (the median), Q₃ (the upper quartile value).

We first arrange the data set in ascending order. Here, the data set is already in ascending order, that is, 10,11,13,18,19,21,22,25,27,30,32.

So we will divide the above set into two equal halves. As the given set has 11 terms,

So the median is [tex]\frac{n+1}{2}[/tex] where n is the number of terms.

We have n=11

⇒ Median= [tex]\frac{11+1}{2}[/tex] th term

                = 6th term

⇒ Median= 21

Now the data to the left side of the median value will give the lower quartile and the data to the right will give the upper quartile.

The data to the left of median value 21 is 10,11,13,18,19.

The median value of this data will give the lower quartile value.

Median = [tex]\frac{5+1}{2}[/tex]th term= 3rd term

              =13

⇒Lower quartile is 13.

The data to the right of the median value 21 is 22,25,27,30,32

The median value of this data will give the upper quartile value.

Median = [tex]\frac{5+1}{2}[/tex]th term= 3rd term

             = 27

⇒Upper quartile is 27.

The correct answer is lower quartile= 13, upper quartile = 27

Learn more about quartiles here:

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#SPJ2

Answer:

First column:

E: 35

i :51

A: 168

Y: 18

T: 140

E: 7

P: 19

Step-by-step explanation:

I used order of operations / PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, and Subtraction), and plugged in the values for a, b, n, and m. For letter E, add and subtract the values first then divide, it's easier. That's all I got for now. I'll solve the rest and answer as soon as possible. :)

Answer:

the probability of each letter to be chosen is 1/4%.

S= {W, X, Y, Z}

Step-by-step explanation:

Answer:

Step-by-step explanation:

75

Answer:

Q1-4 = Solutions are found in attachment; Q5 = 24; Q6 = 8; Q7 = 7; Q8 = 3; Q9 = 45; Q10 = 24; Q11 = 15; Q12 = 18; Q13 = 3, 6, 9, 12, 15; Q14 = 7, 14, 21, 28, 35; Q15 = 8, 16, 24, 32, 40

Step-by-step explanation:

Solution for 1 to 4 are shown in the graph in the attachment.

Bold = Answer

Equivalent fractions

5.

6/8 = x/32

32/8 = 4

x = 6 * 4 = 24

6.

4/6 = x/12

12/6 = 2

x = 4 * 2 = 8

7.

1/8 = x/56

56/8 = 7

x = 1 * 7 = 7

8.

9/12 = x/4

12/4 = 3

x = 9/3 = 3

9.

5/9 = 25/x

25 / 5 = 5

x = 9 * 5 = 45

10.

5/6 = 20/x

20 / 5 = 4

x = 6 * 4 = 24

11.

36/45 = 12/x

36/12 = 3

x = 45 / 3 = 15

12.

20/36 = 10/x

20/10 = 2

x = 36/2 = 18

Multiples

13.

3 * 1 = 3

3 * 2 = 6

3 * 3 = 9

3 * 4 = 12

3 * 5 = 15

3, 6, 9, 12, 15

14.

7 * 1 = 7

7 * 2 = 14

7 * 3 = 21

7 * 4 = 28

7 * 5 = 35

7, 14, 21, 28, 35

15.

8 * 1 = 8

8 * 2 = 16

8 * 3 = 24

8 * 4 = 32

8 * 5 = 40

8, 16, 24, 32, 40

Answer:

a) 7 blocks

b) 16

c) 10

d) 13

Answer:

Step-by-step explanation: "no association because depending on how many people are working and how many people are coming in at the same tome"

Answer:

15+2k=21

Step-by-step explanation:

When k=3, we can replace k in the formula with (3), giving us

15+2(3) = 15+6 = 21

Answer:

21

Step-by-step explanation:

15 + 2k when k = 3

15 + 2(3)

15 + 6

21

Answer:

Step-by-step explanation:

Julie's income for 16 hours is $192. Julie takes only 24 hours to earn $288. The rate is $12 for each hour.

Given

Loren and Julie have different part-time jobs after school.

They are both paid at a constant rate of dollars per hour.

The income of Julie is $36 in 3 hours.

For 1 hour, Julie earns $12.

Thus the rate of Julie is $12 per hour.

For the 16 hours, Julie's income will be.

Julie's income for 16 hours = 12 x 16

Julie's income for 16 hours = $192

Julie's income for 16 hours is $192.

Julie takes time to earn $228 will be

Thus, Julie takes only 24 hours to earn $288.

Answer:

a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Hope It Helps!

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a) 48.28 inches

b) 12.5

c) 7.2 cm

d) 16

Answer:

-p + 2

Step-by-step explanation:

Given:

-p - 11 + 13

Question:

Simplify

Work:

Simply just combine like terms

-p - 11 + 13

-p + 2

Solution:

-p + 2

Hope this helped! :D

Answer:-p+

Step-by-step explanation:

Answer:

Step-by-step explanation:

7y+5z-2y+z

Group the two y and the two z together

7y-2y = 5y

5z+z= 6z

(a variable with out a number is = to 1)

so it would be  5y+6z

Hope this helps

B. 40

As we know Sid has 26 Caps

we also know that 26 is 65% of total

so let total caps = x

to calculate x

we know that percent = (Values*100)/total Values.......... i

and here Value = 26 caps

percentage = 65

So we have

65 = (26*100)/x---------------- (As we know that per = fraction*100)..... from i

Hence Answer is 40

Learn more about percentages: https://brainly.com/question/24877689

Answer:

1.  (3,3)

2. (6,3)

Step-by-step explanation:

1.  [tex]\frac{3}{4}[/tex] × (4,4)

step 1. divide by the denominator

4 ÷ 4 = 1

step 2. multiply by the numerator

1 × 3 = 3

2.  [tex]\frac{3}{4}[/tex] × (8,4)

step 1. divide by the denominator

8 ÷ 4 = 2

step 2. multiply by the numerator

2 × 3 = 6

Hope this helps! ( * ＾▽＾)／

Answer:

2) 0.081

3) 0.741

4) 71.3

5) 0.0422

6) 79.9971

7) 0.00265

8)0.0935

Answer:

1 - 89.974

2 - 0.081

3 - 0.741

4 - 71.3

5 - 0.0422

6 - 79.9971

7 - 0.00265

8 - 0.0935