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1 year ago

14. Jabari has read 13 chapters of a 22-chapter book. What percent of the chapters has she read?

Mathematics

1 answer:

Doss [256]1 year ago

4 0

Jabari has read 59.09 percent of the chapters.

What is a percent?

A percentage is a figure or ratios that is stated as a portion of 100 in arithmetic. Although the abbreviations "pct.", "pct.", and frequently "pc" are also employed the percent symbol is most frequently used to indicate it. A percentage is a number without dimensions. It lacks a measuring system. The Latin phrase per centum, which states "hundred" or "by the hundred," is where the word "percent" originates. The Italian phrase percento, which means "for a hundred," gradually sqeezed to become the symbol for "percent." Per became frequently shortened to "p" and finally vanished completely. Two circles and a horizontal line made up the "cento," which is where the present "%" sign is from.

Jabari read 13 chapters out of 22

In percents = 13/22 x 100 percent

= 59.09 percent

To know more about percents, click on the link

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The complete formula for circumference is:

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Since we know the circumference of the circle is 314 inches, we can then solve for d, the diameter:

$314=\pi d$

Using 3.14 for pi, we get:

$314=(3.14)d$

Then solve for d:

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What is the equivalent of <br>2/3x -9 - 2x + 2 = 1 after combining like terms?

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Put the following equation in standard form and determine the quadratic, linear, and constant coefficients. -3x2 - 8 = 5x - 7

marusya05 [52]

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-3x² -5x -1 = 0
-3 (quadratic)
-5 (linear)
-1 (constant)

Step-by-step explanation:

The equation will be in standard form when terms are listed in order of decreasing degree, and the right side of the equation is 0.

<h3>Standard form</h3>

We can subtract the right-side expression from both sides to get standard form.

-3x² -8 -(5x -7) = 5x -7 -(5x -7)

-3x² -8 -5x +7 = 0 . . . . . . . simplify a bit

-3x² -5x -1 = 0 . . . . . . . . . collect terms

The standard form equation can be written ...

-3x² -5x -1 = 0

<h3>Coefficients</h3>

The quadratic coefficient is the coefficient of the term with degree 2. The quadratic coefficient is -3.

The linear coefficient is the coefficient of the term with degree 1. The linear coefficient is -5.

The constant coefficient is the coefficient of the term with no variables. The constant is -1.

<em>Additional comment</em>

We can make the leading coefficient positive by multiplying the equation by -1. This gives ...

3x² +5x +1 = 0

with quadratic, linear, and constant coefficients 3, 5, 1.

This is a legitimate answer to this question. In the case of linear equations, the "standard form" has the constant on the right side of the equal sign, and the leading coefficient is required to be positive. A negative leading coefficient can sometimes lead to errors (when the sign is overlooked), so having a positive leading coefficient is often preferred.

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