How can you divide a fraction by a fraction

Mathematics

2 answers:

murzikaleks [220]3 years ago

7 0

In order to divide fraction by fraction you need to flip(reciprocal) the second fraction and change divisions into multiplication and then multiple then you will get your answer.

Doss [256]3 years ago

5 0

It's important to understand that dividing by a fraction means the same thing as multiplying by the reciprocal of that fraction. In other words, we can simply change the division symbol to multiplication and flip the second fraction.

Let's look at an example.

<em>Simplify the following:</em>

$(\frac{1}{4}) divided by (\frac{2}{3})$

Remember, we can divide fractions by simply changing the division sign to multiplication and we can flip the second fraction.

So we can rewrite 1/4 ÷ 2/3 as 1/4 × 3/2.

Now we can simply multiply across the numerators and multiply across denominators to get 3/8.

I have also attached my work in the image attached.

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5. The Riverside Geyser in Yellowstone National Park erupts

Anastasy [175]

Answer:

Step-by-step explanation:

The equation for the model of the geyser is found by substituting the given upward velocity into the vertical motion model. The problem statement tells us v=69. We assume the height is measured from ground level, so c=0. Putting these values into the model gives ...

h(t) = -16t² +69t

The maximum height is at a time that is halfway between the zeros of the function.

h(t) = -16t(t -4.3125) . . . . . has zeros at t=0 and t=4.3125

The maximum height will occur at t=4.3125/2 = 2.15625 seconds. The height at that time is ...

h(t) = -16(2.15625)(2.15625 -4.3125) = 16(2.15625²) ≈ 74.39 . . . feet

The maximum height of the geyser is about 74.4 feet.