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Nesterboy [21]
3 years ago
12

25 points for grabs!

Mathematics
1 answer:
coldgirl [10]3 years ago
3 0

Answer:

  • 6 marbles

Step-by-step explanation:

Let the initial number of marbles be x

Then added 3 and got 9 as final number

<u>Equation for this and solution</u>

  • x + 3 = 9
  • x = 9 - 3
  • x = 6
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2/v + 2 = 9 solve for v
kenny6666 [7]
2/v+2=9
-2 -2
2/v=7
(2)2/v=7(2)

V=14
6 0
3 years ago
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A recipe calls for 14cup of brown sugar for every 23cup of white sugar. How many cups of brown sugar are required for every cup
photoshop1234 [79]

Note: Consider all the numeric values are in the fraction form. Like 14\to \dfrac{1}{4}, 23\to \dfrac{2}{3} etc.

Given:

A recipe calls for \dfrac{1}{4} cup of brown sugar for every \dfrac{2}{3} cup of white sugar.

To find:

The number of cups of brown sugar that are required for every cup of white sugar.

Solution:

We know that,

Required brown sugar for \dfrac{2}{3} cup of white sugar =  \dfrac{1}{4} cup

Using this, we get

Required brown sugar for 1 cup of white sugar =  \dfrac{\dfrac{1}{4}}{\dfrac{2}{3}} cup

                                                                              =\dfrac{1}{4}\times \dfrac{3}{2} cup

                                                                              =\dfrac{3}{8} cup

So, \dfrac{3}{8} cup of brown sugar is required for every cup of white sugar.

Therefore, the correct option is B.

6 0
3 years ago
If 20 pounds of beans sold for $1.20, what was the price per pound of beans?
zaharov [31]

Answer:

0.06 Cent

Step-by-step explanation:

Per Pound= Every one

so 1.20 divided by 20

= 0.06

So the price per pound of beans is 0.06 Cent

7 0
3 years ago
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Can somebody help me ? please .. if you answer you’ll get 20 points &amp; brainlyiest if correct! ( sorry i might have spelled b
valkas [14]

Answer: I think it should be a: 1/4 inch

Step-by-step explanation:

5 0
3 years ago
(-2,9) and (-2,-5)<br> Slope:
Oliga [24]

Answer:

slope is undefined

Step-by-step explanation:

Calculate the slope m using the slope formula

m = \frac{y_{2}-y_{1}  }{x_{2}-x_{1}  }

with (x₁, y₁ ) = (- 2, 9 ) and (x₂, y₂ ) = (- 2, - 5 )

m = \frac{-5-9}{-2-(-2)} = \frac{-14}{-2+2} = \frac{-14}{0}

Since division by zero is undefined then the slope is undefined

6 0
3 years ago
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