Rick and Debbie are painting a large barn. Debbie paints twice as fast as Rick. They work together for 16 hours and complete the job. Determine how fast Debbie and Rick can paint the entire barn separately.

Answer:

Step-by-step explanation:

3x + 4y = 12

4y = -3x +12

y = (-3/4)X + 12/4

y = -[tex]\frac{3}{4}[/tex]X  + 3

Answer:

9.5

Step-by-step explanation:

Answer:

Original price= $3,200

Step-by-step explanation:

Giving the following information:

Purchase price= $2,816

Discount rate= 12% = 0.12

To calculate the original price, we need to use the following formula:

Original price= purchase price / (1 - discount rate)

Original price= 2,816 / 0.88

Original price= $3,200

Answer:

c

Step-by-step explanation:

Answer:

hey:)

H= 90+33=123

180-123=57

so:

H=57°

Answer:

3/20

Step-by-step explanation:

stefan sell 1/5 × 3/4 = 3/20 boxes of candy

Answer:

12. (8(2.5)-3)

(20-3)

y=17in

10. 3x+1+92=180

3x+93=180

3x=180-93

3x=87

x=87/3

x=29°

11. (6(2.5)+2)

(15+2)

G=17

Answer:

#10 I think its 14.3

#11 GI=16

#12 AC =17

Step-by-step explanation:

180-92=88 divided by 2=44

6x2.5=15+2=17

8x2.5=20-3=17

Answer:

isosceles trapezoid, it has one pair of parallel sides and the other sides are equal in length

Step-by-step explanation:

Answer:

.

Step-by-step explanation:

Answer:

Quadrant III

Step-by-step explanation:

Quadrant I = 1 - 90°

Quadrant II = 91 - 180°

Quadrant III = 181 - 270°

Quadrant IIII = 271 - 360°

Answer:

Step-by-step explanation:

im ka$hdami a 16yr old rapper i made the viral songs (reperations) (Look N the Mirror) and (Kappin Up) check out my new songs out on all platforms

Answer:

The Sum of the probabilities is 2/3

The probability -1/3 is less than 0

Step-by-step explanation:

Just took the quiz

The correct statements regarding why the table does not represent a probability distribution are given by:

There are two conditions:

In this problem, we have that result 10 has a probability of -1/3, hence this is one of the reasons.

The sum of the probabilities is given by:

[tex]-\frac{1}{3} + \frac{2}{5} + \frac{1}{5} + \frac{2}{5} = -\frac{1}{3} + 1 = \frac{2}{3}[/tex]

Sum of 2/3 is different than 1, hence this is the other reason.

More can be learned about probability distributions at https://brainly.com/question/24802582

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Answer:

$0.42

Step-by-step explanation:

create a proportion:

13/.78 = 7/x

cross-multiply to get:

13x = 7(.78)

13x = 5.46

x = 5.46/13

x = .42

Answer:

A. 69

C. 42

Step-by-step explanation:

Angle A is similar to angle C, so that makes that angle 69. With two angles figured out, we can just use basic math to find the last.

The total of all triangle angles will always be 180 degrees. Knowing this...

180-69-69=42

Thus, the angles are 69,69, and 42

Answer:

3x-5+6x+14=180

9x+9. =180

9(X+1).= 180

X+1. =20

X= 19

Step-by-step explanation:

The general vertex form is given by

[tex]y = a {(x - h)}^{2} + k[/tex]

where (h, k) is the vertex and a is a constant. So we can write the y as

[tex]y = a {(x - 2)}^{2} + 1[/tex]

To find the value of a, substitute the point (1, -4)

-4 = a(1 - 2)^2 + 1

or a = -5

Therefore, the vertex form of the parabola is

[tex]y = - 5 {(x - 2)}^{2} + 1[/tex]

Answer:

212 in^2

Step-by-step explanation:

Answer:

[tex]5.1[/tex] units

Step-by-step explanation:

(4, 4) & (9, 3)

To find the distance of two points, we use the distance formula:

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

Let's plug in what we know.

[tex]d = \sqrt{(9 - 4)^2 + (3 -4)^2 }[/tex]

Evaluate the parentheses.

[tex]d = \sqrt{(5)^2 + (-1)^2 }[/tex]

Evaluate the exponents.

[tex]d = \sqrt{(25) + (1)}[/tex]

Add.

[tex]d = \sqrt{(26)}[/tex]

Evaluate the square root.

[tex]d = \sqrt{26}[/tex] or [tex]5.0990[/tex] units

Round to the nearest 10th.

[tex]5.1[/tex] units

Hope this helps!

Answer:

The probability that the flight would be delayed when it is raining is 0.571

Step-by-step explanation:

Here, we want to find the probability that given that it is raining, what is the probability that the flight will be delayed

Let A be the event that flight will be delayed

P(A) = 0.15

Let B be the event that it will rain

P(B) = 0.07

P(A n B) = 0.04

Thus;

P(A|B) = P(A n B)/P(B) = 0.04/0.07 = 0.571

Answer:

40!

Step-by-step explanation:

CE is 12

CD and ED are congruent so they're both 14

12 + 14 + 14 is 40

Answer:

30.2 is the answer (use distrubutyion in this problem)

Step-by-step explanation:

Answer: D. Daily times for a long distance runner

Answer: C. Ages of siblings

Step-by-step explanation: Line graphs are used to track changes over short and long periods of time.

V= 4 i mean thats the best i can give sorry good luck pretty sure its right

Answer:

18

Step-by-step explanation:

Adding 6 and 3 gives you the full length of the long side of rectangle  and since 3 is the radius of the circle, the short side if the rectangle would also be equal to 3.

So, the long sides equal 9 and the short sides are 3, making the perimeter 18

The perimeter of the rectangle is P = 24 units

The perimeter P of a rectangle is given by the formula, P=2 ( L + W) , where L is the length and W is the width of the rectangle.

Perimeter P of rectangle = 2 ( Length + Width )

Given data ,

Let the perimeter of the rectangle be P

Now , the width of the rectangle = radius of circle

W = 3 units

And , the length of the rectangle is L = 6 + 3 = 9 units

And , Perimeter P of rectangle = 2 ( Length + Width )

On simplifying , we get

P = 2 ( 9 + 3 )

P = 2 x 12

P = 24 units

Hence , the perimeter is 24 units

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Answer: Hope This Helps!

Step-by-step explanation:

Statistic Definition: A mathematical science concerned with data collection, presentation, analysis, and interpretation

Examples: "Statistics is the only mathematical field required for many social sciences." and "The statistics from the Census for apportionment are available."