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irina [24]
3 years ago
11

What’s the answer and could you explain it

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
3 0
The answer is B.   Because there are 8 ribbons in all. 1 ribbon is black. so the equation would be 1/8. Assuming you don't draw the black ribbon on the first try, then you would try again. The second time you draw a ribbon you don't put the ribbon you drew back in. That means there are only 7 ribbons the second time. The 1 black ribbon is still in the bag than the equation would be 1/7. Then you add the two together. So it would be 1/8 + 1/7 = 1/15. Remember to only add the bottom numbers. not the top ones unless they are different colors or objects.
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Help! I need this to pass my class.
alexandr402 [8]

Answer:

What do you need help with?

Step-by-step explanation:

7 0
3 years ago
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Find an equivalent expression for the missing side length of the rectangle. Then find the missing side when x=3.Round to the nea
SashulF [63]

Answer:

Base of rectangle = 23.25 units (Approx.)

Step-by-step explanation:

Given:

Diagonal of rectangle (Hypotenuse) = 8x

Height of rectangle (Perpendicular) = 2x

Find:

Base of rectangle

Computation:

Base = √Hypotenuse² - Perpendicular²

Base of rectangle = √(8x)² - (2x)²

Base of rectangle = √64x² - 4x²

Base of rectangle = √60x²

Base of rectangle = 7.75x units (Approx.)

If x = 3

Base of rectangle = 7.75x

Base of rectangle = 7.75(3)

Base of rectangle = 23.25 units (Approx.)

5 0
3 years ago
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Find the midpoint of (-7,-2) AND (1,7)
Gala2k [10]

Answer:

(-3 ,2.5)

Step-by-step explanation:

midpoint formula is

 x1+x2        y1+y2

(___    ,    _____   )

  2                   2

(-7,-2)     -7 is x1 i.e the first x point and -2 is y1 1st y point

(1,7)        1 is x2 i.e the second x point and 7 is y2 the second y point

now we use input the numbers to the formula

-7+1         -2+7          

(____  , --------)

2             2

we the signs are different you subtract and use sign of greater number

-6          5

__ ,     ___

2           2

Now you divide

and here is the ordered pair for midpoint.

(-3 ,2.5)

5 0
3 years ago
Solve using the substitution method<br> 4x-2y=8 <br> y=1/2x +2
bekas [8.4K]

Hello there! the answer would be x = 3/4.

You are given the two equations: 4x - 2y = 8 and y = 1/2x + 2. You are asked to solve via substitution. To do this, substitute the value of y in the second given equation into the first given equation, and solve using PEMDAS.

4x - 2(1/2x + 2) = 8 - Start by distributing 2 into (1/2x + 2).

4x - 1x + 4 = 8 - Combine like terms.

3x + 4 = 8 - Subtract 4 from both sides.

3x = 4 - divide both sides by 3.

x = 3/4. This is your final answer.

I hope this was helpful, have a great day! :)

7 0
3 years ago
Caleb's grade was changed by -18 points
ASHA 777 [7]

Answer:

6.

Step-by-step explanation:

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3 0
3 years ago
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