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Anni [7]
3 years ago
5

the numerator of a fraction is 9 and the denominator is6. all of the following numbers are equivalent except

Mathematics
1 answer:
Sphinxa [80]3 years ago
3 0

Question is incomplete, complete question is given below.

The numerator of a fraction is 9 and the denominator is 6. All of the following numbers are equivalent except _____.

A) 2/3

B)3/2

C)1 1/2

D)18/12

Answer:

A) 2/3

Step-by-step explanation:

Given:

The fraction is \frac{9}{6}

By solving the above fraction to its simplest form we get

\frac{9}{6}=\frac{3\times3}{2\times2}=\frac{3}{2}

Now For Option A which is \frac{2}{3}

Give fraction is \frac{3}{2}

We can say that it is Not equivalent to given fraction.

Now For Option B which is \frac{3}{2}

Give fraction is \frac{3}{2}

We can say that it is equivalent to given fraction.

Now For Option C which is 1\frac{1}{2}

Solving above equation to simplest form we get,

1\frac{1}{2}= \frac{1\times2+1}{2}=\frac{3}{2}

Give fraction is \frac{3}{2}

We can say that it is equivalent to given fraction.

Now For Option D which is \frac{18}{12}

Solving above equation to simplest form we get,

\frac{18}{12}= \frac{6 \times 3}{6 \times 2} = \frac{3}{2}

Give fraction is \frac{3}{2}

We can say that it is equivalent to given fraction.

Hence all answer B C and D are all equal to \frac{3}{2} except A which is \frac{2}{3}

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shepuryov [24]
Original volume = 2.5 million liters.
After evaporation, the remaining volume is 2 million liters, therefore
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Percent of water evaporated = 100*(0.5/2.5) = 20%

Answer: 20%
6 0
3 years ago
Can someone help me with this question please!!!!!
faltersainse [42]
From the equation, it looks like we can set up a triangle like this.  One side is x and the other is x + 20 because the northbound car traveled 20 miles farther.  The hypotenuse is 100 because they were 100 miles apart.

Next, we can use the Pythagorean Theorem to solve for x:

a² + b² = c²
x² + (x + 20)² = 100²

This simplifies to:

x² + x² + 40x + 400 = 10000
2x² + 40x = 9600
2x² + 40x - 9600 = 0

After that, we can divided each side by 2:

x² + 20x - 4800 = 0

Next, we have to factor:

(x - 60)(x + 80) = 0
x = 60, -80

Since we know that distance can't be negative, 60 is the valid answer in this case.

x = 60
x + 20 = 80

Using this information, we know that the westbound car traveled 60 miles and the northbound car traveled 80 miles.

6 0
2 years ago
Given that f(x)=2x+3 , find: f(5x+3)
PIT_PIT [208]

Answer:

f(5x+3) = 10x + 9

Step-by-step explanation:

f(x) = 2x + 3

f(5x+3) = ??

Given this information, we know that x = 5x + 3. Therefore, to solve the new equation we need to plug 5x + 3 into the original equation

f(5x+3) = 2(5x+3) + 3

Now we distribute the 2

f(5x+3) = 10x + 6 + 3

Finally, combine like terms

f(5x+3) = 10x + 9

5 0
2 years ago
. IF F(x) = 2(x-3) + 4, what is F(-2)?
Virty [35]
F(x) = 2(x-3) + 4
F(-2) = 2(-2-3) + 4
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Hope this helps
8 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csec%5Cleft%28x%5Cright%29%7D%7B%5Ccos%5Cleft%28x%5Cright%29%7D-%5Cfrac%7B%5Csin%5
DanielleElmas [232]

Answer:

1

Step-by-step explanation:

First, convert all the secants and cosecants to cosine and sine, respectively. Recall that csc(x)=1/sin(x) and sec(x)=1/cos(x).

Thus:

\frac{sec(x)}{cos(x)} -\frac{sin(x)}{csc(x)cos^2(x)}

=\frac{\frac{1}{cos(x)} }{cos(x)} -\frac{sin(x)}{\frac{1}{sin(x)}cos^2(x) }

Let's do the first part first: (Recall how to divide fractions)

\frac{\frac{1}{cos(x)} }{cos(x)}=\frac{1}{cos(x)} \cdot \frac{1}{cos(x)}=\frac{1}{cos^2(x)}

For the second term:

\frac{sin(x)}{\frac{cos^2(x)}{sin(x)} } =\frac{sin(x)}{1} \cdot\frac{sin(x)}{cos^2(x)}=\frac{sin^2(x)}{cos^2(x)}

So, all together: (same denominator; combine terms)

\frac{1}{cos^2(x)}-\frac{sin^2(x)}{cos^2(x)}=\frac{1-sin^2(x)}{cos^2(x)}

Note the numerator; it can be derived from the Pythagorean Identity:

sin^2(x)+cos^2(x)=1; cos^2(x)=1-sin^2(x)

Thus, we can substitute the numerator:

\frac{1-sin^2(x)}{cos^2(x)}=\frac{cos^2(x)}{cos^2(x)}=1

Everything simplifies to 1.

7 0
2 years ago
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