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NeX [460]
3 years ago
12

What is a unit rate?a rate with one in the numerator a rate in which the numerator and the denominator are equal a rate with one

in the denominator a rate in which the denominator is greater than the numerator?
Mathematics
1 answer:
exis [7]3 years ago
5 0
A rate in which the numerator and the denominator are equal to a rate of one 
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A bag contains only red and blue marbles. Yasmine takes one marble at random from the bag. The probability that she takes a red
mamaluj [8]

Let red marbles = X.

The probability is 1 out of 5, written as 1/5

1/5 in terms of red marbles is equal to the number of red marbles divided by 5x, where 5x is the total number of marbles.

1/5 = x/5x 

Now you have 5x total marbles, x red and 4x blue. 

Add 5 more red and the new probability is: 

(x+5)/(5x+5) = 1/3 

Simplify:

3x+15 = 5x+5 

Now solve for x:

Subtract 3x from both sides:

15 = 2x +5

Subtract 5 from each side:

2x = 10 

Divide both sides by 2:

x = 10/2

X = 5

There were originally 5 red marbles.

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3 years ago
Can someone please write the for mat on how to solve the problem so I can practice, please..thank you.....20.000 × 26%
LekaFEV [45]

Answer:

20(.26) = 5.2

First you take the first number, which is 20, and then multiply it by the percentage, which is .26. Using a calculator, we get 5.2. Hope this helps.

6 0
3 years ago
Find f(-3) if f(x) = x 2.
vlabodo [156]

Answer:

f(-3) = 9

Step-by-step explanation:

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f(a) is found out by putting the integer in the function in place of the variable

So for the given question

f(x) = x^{2}

In order to find f(-3) we will put -3 in place of x

So putting -3,

f(-3) = (-3)^{2}

f(-3) = 9

So, the value of function at -3 is 9 ..

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How many 1/4 cup servings are in 2 1/2 cups of yogurt?
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Answer:

10

Step-by-step explanation:

Hope it helps! :D

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