Marie has a box that contains only red and blue marbles in a ratio of 5:45. What percent of the marbles in the box were red?

Answer:

x = -5

Step-by-step explanation:

[tex]3x + 4 = 6x + 19\\-3x + 4 = 19\\-3x = 15\\x = -5[/tex]

Answer: a. 3.85

Step-by-step explanation:

The answer is C i just did the assignment and its correct. also, slide 4 of 11 is B,

slide 5 of 11 is D

slide 6 of 11 is B

slide 7 of 11 is sin, cos, 1, 0, cos

slide 8 of 11 is D

slide 9 of 11 is A

slide 10 of 11 is 0, 1, sin, 3, and 3

slide 11 of 11 is B

HOPE THIS HELPS:))))

The exact value of the given trigonometric function sin(140°)cos(20°) – cos(140°)sin(20°) is -√3/2.

Trigonometric functions are defined as the functions which show the relationship between the angle and sides of a right-angled triangle.

To find the exact value of sin(140°)cos(20°) – cos(140°)sin(20°), we can use the angle addition formula for sine:

sin(A+B) = sin(A)cos(B) + cos(A)sin(B)

We can use this formula to rewrite the expression as:

sin(140°)cos(20°) – cos(140°)sin(20°) = sin(120°+20°) - sin(120°-20°)

Then, using the angle addition formula for sine, we get:

sin(120°+20°) - sin(120°-20°) = sin(120°)cos(20°) + cos(120°)sin(20°) - sin(120°)cos(20°) + cos(120°)sin(20°)

This simplifies to:

2sin(120°)cos(20°) = 2sin(120°)cos(20°)

The value of sin(120°) is -1/2, and the value of cos(20°) is √3/2, so the final value of the expression is:

2(-1/2)(√3/2) = -√3/2

Learn more about Trigonometric functions here:

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Answer:

85 dollars would be the answer

Answer:

B: 1/6

Step-by-step explanation:

make 1/4 to 3/12. 7/12 + 3/12 is 10/12. So the green is 2/12. 2/12 simplified is 1/6.

Answer:

B

Step-by-step explanation:

7/12=53%

1/4=25%

the remaining would be 16 % ad 1/6 is 16%

your scientific notation will be 2.505 x 10^4

Answer:

the ratio of boys to the total students is 15:27

Step-by-step explanation:

Since we know there are 15 boys and 12 girls, we can add those to know there are 27 total students. Therefore, the ratio it 15:27

Answer:

15:27

=5:9 (if answer is needed in simplest form)

Step-by-step explanation:

B  :  G   : Total

15 :   12 : 15+12=27

hence boys to total is 15:27

                                    =5:9 (if answer is needed in simplest form)

Answer:

2 units

Step-by-step explanation:

Flipping the rectangle over doesn't change the measure/area.

Answer:

bella in the clouds widhsgnv

Step-by-step explanation:

Answer:

60

Step-by-step explanation:

V=Base area*height

V=((5*8)/2)*3

V=(40/2)*3

V=20*3

V=60

Answer:

where is the graph?

Step-by-step explanation:

Answer:

A.) 2 cups

Step-by-step explanation:

Answer:

The answer is A x 10 b

9514 1404 393

Answer:

  y = -5x -1

Step-by-step explanation:

The 2-point form of the equation for a line can be useful.

  y = (y2 -y1)/(x2 -x1)(x -x1) +y1

  y = (-11 -(-6))/(2 -1)(x -1) +(-6)

  y = -5/1(x -1) -6 . . . . . simplify a bit

  y = -5x -1 . . . . . slope-intercept form

Answer:

Step-by-step explanation:

(x+4)² + y² = 1.5²

Answer:

Use " m-a-t-h-w-a-y " for this.

Step-by-step explanation:

Median → 8

Mode → 8

Range → 10

Minimum →  2

Maximum → 12

∞God bless you

∞Have an awesome day

Answer:

115

Step-by-step explanation:

Answer: x = 115 degrees

Step-by-step explanation:

a triangle we know all angles had up to 180 degrees

for the first triangle we have 65 + 90 = 155 then we do 180 - 155 = 25

so for the small triangle one angle is 25 degrees

now for the other triangle we have 80 + 60 = 140 then 180 - 140 = 40

so now we have all angles except x and to find that we do 25 + 40 = 65 then to find x do 180 - 65 = 115

Answer:

The number of marbles of each color that should be present in the bag is;

1 red marble and 2 green marbles

Here, we note that the probability of a battery going dead = 1/3 and the

Therefore if the red marbles represent that a battery dies before 15 hours then the probability of picking the red marble should be 1/3. That is if there is only one red marble in the bag, the probability of picking the red will be 1/3 when there are other 2 green batteries in the bag

That is there should be 1 red marble and 2 green marble in the bag.

Step-by-step explanation:

Answer:

36.7 I do believe Im not really sure though

Answer:

I believe it is 35.3

180-(90+27)

x/Sin63=18/Sin27

x=18Sin63/Sin27

x=35.3

Answer:

Assuming that a and b are not the hypotenuse then B would be equal to A, so B would equal 25m

Step-by-step explanation:

I hope this is right, you didn't put a picture.

Answer:

15.9

Step-by-step explanation:

Let me help ya

Step-by-step explanation:

lol I do iready too so first replace the varbile with what ever number they have then you multiply it

Answer:

1/3

Step-by-step explanation:

Divide both by 7, which equals 2/6 and that can be divided by 2, which equals 1/3

Answer:

1/20

Step-by-step explanation:

[tex] \frac{3}{4} \div \frac{15}{1} \\ \frac{3}{4} \times \frac{1}{15} \\ \frac{3}{60} = \frac{1}{20} [/tex]

Answer:

1/20

Step-by-step explanation:

Answer:

Step-by-step explanation:

The imaginary number 'i' is equal to the square root of -1. If you were to square the square root, they both cancel and you get -1.

[tex]21i^2=21(\sqrt{-1} )^2=21(-1)=-21[/tex]