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3 years ago

How many fourths are in 7/8

Mathematics

1 answer:

Nutka1998 [239]3 years ago

5 0

$\dfrac{7}{8} \div \dfrac{1}{4}=\dfrac{7}{8}\cdot4=\dfrac{7}{2}=3.5$

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two-fifths of a number is decreased by three.find the value of the expression if the number is twenty five

djyliett [7]

The expression would be written as:

$\frac{2}{5}$ n-3

N is any number. This expression means two-fifths of a number, subtract three. Now substitute 25 for n.

$\frac{2}{5}$ (25)-3
=10-3
=7

7 0

3 years ago

Which shows an equation in point-slope form of the line shown?

Liono4ka [1.6K]

Answer: Option (3)

Step-by-step explanation:

The slope of the given line is

$\frac{-2-4}{-6-2}=\frac{-6}{-8}=\frac{3}{4}$

Thus, the answer must be Option (3)

4 0

2 years ago

The life spans, in years, of some plants in a nursery are shown below:

yKpoI14uk [10]

Jack incorrect plotted the third quartile.

Explanation:

7 0

3 years ago

Read 2 more answers

A polynomial has been factored, as shown below: f(x) = (x − 6)(x + 5)(x − 9) What are the zeros of the polynomial? (5 points)

soldi70 [24.7K]

x=6, x=−5 or x=9

Explanation:

f(x)=(x−6)(x+5)(x−9)

If all of the linear factors are non-zero, then so is their product f(x).

If any of the linear factors is zero, then so is their product f(x).

5 0

3 years ago

Write a quadratic equation in standard form with the given roots

stich3 [128]

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

Step-by-step explanation:

So we go backwards, since we have x= 1/2 , 7

$(x - \frac{1}{2} )(x - 7)$

Now we have to foil to get the quadratic

${x}^{2} - 7x - \frac{1}{2} x + \frac{7}{2}$

We must simplify the terms

${x}^{2} - \frac{14x}{2} - \frac{x}{2} + \frac{7}{2}$

Our final result comes out to be

${x}^{2} - \frac{15x}{2} + \frac{7}{2}$

5 0

2 years ago